diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index fa5b824..718137d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,43 +1,43 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.1.0
+    rev: v4.3.0
     hooks:
       - id: trailing-whitespace
       - id: check-json
       - id: check-yaml
 
-  - repo: https://gitlab.com/pycqa/flake8
-    rev: 4.0.1
+  - repo: https://github.com/pycqa/flake8
+    rev: 5.0.4
     hooks:
       - id: flake8
-        additional_dependencies: [flake8-bugbear==22.3.23]
+        additional_dependencies: [flake8-bugbear==22.9.23]
 
   - repo: https://github.com/codespell-project/codespell
-    rev: v2.1.0
+    rev: v2.2.2
     hooks:
       - id: codespell
         name: Check source code spelling
         exclude: ^(swh/loader/.*/tests/data/.*)$
         args: [-L crate]
         entry: codespell --ignore-words-list=iff
         stages: [commit]
 
   - repo: local
     hooks:
       - id: mypy
         name: mypy
         entry: mypy
         args: [swh]
         pass_filenames: false
         language: system
         types: [python]
 
   - repo: https://github.com/PyCQA/isort
     rev: 5.10.1
     hooks:
       - id: isort
 
   - repo: https://github.com/python/black
-    rev: 22.3.0
+    rev: 22.10.0
     hooks:
       - id: black
diff --git a/PKG-INFO b/PKG-INFO
index 49b7c53..369d7ce 100644
--- a/PKG-INFO
+++ b/PKG-INFO
@@ -1,55 +1,55 @@
 Metadata-Version: 2.1
 Name: swh.loader.core
-Version: 5.0.0
+Version: 5.1.0
 Summary: Software Heritage Base Loader
 Home-page: https://forge.softwareheritage.org/diffusion/DLDBASE
 Author: Software Heritage developers
 Author-email: swh-devel@inria.fr
 Project-URL: Bug Reports, https://forge.softwareheritage.org/maniphest
 Project-URL: Funding, https://www.softwareheritage.org/donate
 Project-URL: Source, https://forge.softwareheritage.org/source/swh-loader-core
 Project-URL: Documentation, https://docs.softwareheritage.org/devel/swh-loader-core/
 Classifier: Programming Language :: Python :: 3
 Classifier: Intended Audience :: Developers
 Classifier: License :: OSI Approved :: GNU General Public License v3 (GPLv3)
 Classifier: Operating System :: OS Independent
 Classifier: Development Status :: 5 - Production/Stable
 Requires-Python: >=3.7
 Description-Content-Type: text/markdown
 Provides-Extra: testing
 License-File: LICENSE
 License-File: AUTHORS
 
 Software Heritage - Loader foundations
 ======================================
 
 The Software Heritage Loader Core is a low-level loading utilities and
 helpers used by :term:`loaders <loader>`.
 
 The main entry points are classes:
 - :class:`swh.loader.core.loader.BaseLoader` for VCS loaders (e.g. svn)
 - :class:`swh.loader.core.loader.DVCSLoader` for DVCS loaders (e.g. git, ...)
 - :class:`swh.loader.core.loader.ContentLoader` for Content loader
 - :class:`swh.loader.core.loader.DirectoryLoader` for Directory loader
 - :class:`swh.loader.package.loader.PackageLoader` for Package loaders (e.g. PyPI, Npm, ...)
 - ...
 
 Package loaders
 ---------------
 
 This package also implements many package loaders directly, out of convenience,
 as they usually are quite similar and each fits in a single file.
 
 They all roughly follow these steps, explained in the
 :py:meth:`swh.loader.package.loader.PackageLoader.load` documentation.
 See the :ref:`package-loader-tutorial` for details.
 
 VCS loaders
 -----------
 
 Unlike package loaders, VCS loaders remain in separate packages,
 as they often need more advanced conversions and very VCS-specific operations.
 
 This usually involves getting the branches of a repository and recursively loading
 revisions in the history (and directory trees in these revisions),
 until a known revision is found
diff --git a/docs/package-loader-specifications.rst b/docs/package-loader-specifications.rst
index 01abe7d..64250a8 100644
--- a/docs/package-loader-specifications.rst
+++ b/docs/package-loader-specifications.rst
@@ -1,187 +1,196 @@
 .. _package-loader-specifications:
 
 Package loader specifications
 =============================
 
 Release fields
 --------------
 
 Here is an overview of the fields (+ internal version name + branch name) used by each package loader, after D6616:
 
 .. list-table:: Fields used by each package loader
    :header-rows: 1
 
    * - Loader
      - internal version
      - branch name
      - name
      - message
      - synthetic
      - author
      - date
      - Notes
    * - arch
      - ``p_info.​version``
      - ``release_name(​version, filename)``
      - =version
      - Synthetic release for Arch Linux source package {p_info.name} version {p_info.version} {description}
      - true
      - from intrinsic metadata
      - from extra_loader_arguments['arch_metadata']
      - Intrinsic metadata extracted from .PKGINFO file of the package
    * - archive
      - passed as arg
      - ``release_name(​version)``
      - =version
      - "Synthetic release for archive at {p_info.url}\n"
      - true
      - ""
      - passed as arg
      -
    * - aur
      - ``p_info.​version``
      - ``release_name(​version, filename)``
      - =version
      - Synthetic release for Aur source package {p_info.name} version {p_info.version} {description}
      - true
      - ""
      - from extra_loader_arguments['aur_metadata']
      - Intrinsic metadata extracted from .SRCINFO file of the package
    * - cpan
      - ``p_info.​version``
      - ``release_name(​version)``
      - =version
      - Synthetic release for Perl source package {name} version {version} {description}
      - true
      - from intrinsic metadata if any else from extrinsic
      - from extrinsic metadata
      - name, version and description from intrinsic metadata
    * - cran
      - ``metadata.get(​"Version", passed as arg)``
      - ``release_name(​version)``
      - =version
      - standard message
      - true
      - ``metadata.get(​"Maintainer", "")``
      - ``metadata.get(​"Date")``
      - metadata is intrinsic
+   * - conda
+     - ``p_info.​version``
+     - ``release_name(​version)``
+     - =version
+     - Synthetic release for Conda source package {p_info.name} version {p_info.version}
+     - true
+     - from intrinsic metadata
+     - from extrinsic metadata
+     - ""
    * - crates
      - ``p_info.​version``
      - ``release_name(​version, filename) + "\n\n" + i_metadata.description + "\n"``
      - =version
      - Synthetic release for Crate source package {p_info.name} version {p_info.version} {description}
      - true
      - from int metadata
      - from ext metadata
      - ``i_metadata`` for intrinsic metadata, ``e_metadata`` for extrinsic metadata
    * - debian
      - =``version``
      - ``release_name(​version)``
      - =``i_version``
      - standard message (using ``i_version``)
      - true
      - ``metadata​.changelog​.person``
      - ``metadata​.changelog​.date``
      - metadata is intrinsic. Old revisions have ``dsc`` as type
        ``i_version`` is the intrinsic version (eg. ``0.7.2-3``) while ``version``
        contains the debian suite name (eg. ``stretch/contrib/0.7.2-3``) and is
        passed as arg
    * - golang
      - ``p_info.​version``
      - ``release_name(version)``
      - =version
      - Synthetic release for Golang source package {p_info.name} version {p_info.version}
      - true
      - ""
      - from ext metadata
      - Golang offers basically no metadata outside of version and timestamp
    * - deposit
      - HEAD
      - only HEAD
      - HEAD
      - "{client}: Deposit {id} in collection {collection}\n"
      - true
      - original author
      - ``<codemeta: dateCreated>`` from SWORD XML
      - revisions had parents
    * - maven-loader
      - passed as arg
      - HEAD
      - ``release_name(version)``
      - "Synthetic release for archive at {p_info.url}\n"
      - true
      - ""
      - passed as arg
      - Only one artefact per url (jar/zip src)
    * - nixguix
      - URL
      - URL
      - URL
      - None
      - true
      - ""
      - None
      - it's the URL of the artifact referenced by the derivation
    * - npm
      - ``metadata​["version"]``
      - ``release_name(​version)``
      - =version
      - standard message
      - true
      - from int metadata or ""
      - from ext metadata or None
      -
    * - opam
      - as given by opam
      - "{opam_package}​.{version}"
      - =version
      - standard message
      - true
      - from metadata
      - None
      - "{self.opam_package}​.{version}" matches the version names used by opam's backend. metadata is extrinsic
    * - pubdev
      - ``p_info.​version``
      - ``release_name(​version)``
      - =version
      - Synthetic release for pub.dev source package {p_info.name} version {p_info.version}
      - true
      - from extrinsic metadata
      - from extrinsic metadata
      - name and version from extrinsic metadata
    * - puppet
      - ``p_info.​version``
      - ``release_name(​version)``
      - =version
      - Synthetic release for Puppet source package {p_info.name} version {version} {description}
      - true
      - from intrinsic metadata
      - from extrinsic metadata
      - version and description from intrinsic metadata
    * - pypi
      - ``metadata​["version"]``
      - ``release_name(​version)`` or ``release_name(​version, filename)``
      - =version
      - ``metadata[​'comment_text']}`` or standard message
      - true
      - from int metadata or ""
      - from ext metadata or None
      - metadata is intrinsic
 
 using this function::
 
     def release_name(version: str, filename: Optional[str] = None) -> str:
         if filename:
             return "releases/%s/%s" % (version, filename)
         return "releases/%s" % version
 
 and "standard message" being::
 
     msg = (
         f"Synthetic release for {PACKAGE_MANAGER} source package {name} "
         f"version {version}\n"
     )
 
 
 The ``target_type`` field is always ``dir``, and the target the id of a directory
 loaded by unpacking a tarball/zip file/...
diff --git a/setup.py b/setup.py
index 93e7f45..25ecef1 100755
--- a/setup.py
+++ b/setup.py
@@ -1,90 +1,91 @@
 #!/usr/bin/env python3
 # Copyright (C) 2015-2018  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from io import open
 from os import path
 
 from setuptools import find_packages, setup
 
 here = path.abspath(path.dirname(__file__))
 
 # Get the long description from the README file
 with open(path.join(here, "README.rst"), encoding="utf-8") as f:
     long_description = f.read()
 
 
 def parse_requirements(name=None):
     if name:
         reqf = "requirements-%s.txt" % name
     else:
         reqf = "requirements.txt"
 
     requirements = []
     if not path.exists(reqf):
         return requirements
 
     with open(reqf) as f:
         for line in f.readlines():
             line = line.strip()
             if not line or line.startswith("#"):
                 continue
             requirements.append(line)
     return requirements
 
 
 setup(
     name="swh.loader.core",
     description="Software Heritage Base Loader",
     long_description=long_description,
     long_description_content_type="text/markdown",
     python_requires=">=3.7",
     author="Software Heritage developers",
     author_email="swh-devel@inria.fr",
     url="https://forge.softwareheritage.org/diffusion/DLDBASE",
     packages=find_packages(),  # packages's modules
     scripts=[],  # scripts to package
     install_requires=parse_requirements() + parse_requirements("swh"),
     setup_requires=["setuptools-scm"],
     use_scm_version=True,
     extras_require={"testing": parse_requirements("test")},
     include_package_data=True,
     entry_points="""
         [swh.cli.subcommands]
         loader=swh.loader.cli
         [swh.workers]
         loader.content=swh.loader.core:register_content
         loader.directory=swh.loader.core:register_directory
         loader.arch=swh.loader.package.arch:register
         loader.archive=swh.loader.package.archive:register
         loader.aur=swh.loader.package.aur:register
+        loader.conda=swh.loader.package.conda:register
         loader.cpan=swh.loader.package.cpan:register
         loader.cran=swh.loader.package.cran:register
         loader.crates=swh.loader.package.crates:register
         loader.debian=swh.loader.package.debian:register
         loader.deposit=swh.loader.package.deposit:register
         loader.golang=swh.loader.package.golang:register
         loader.nixguix=swh.loader.package.nixguix:register
         loader.npm=swh.loader.package.npm:register
         loader.opam=swh.loader.package.opam:register
         loader.pubdev=swh.loader.package.pubdev:register
         loader.puppet=swh.loader.package.puppet:register
         loader.pypi=swh.loader.package.pypi:register
         loader.maven=swh.loader.package.maven:register
     """,
     classifiers=[
         "Programming Language :: Python :: 3",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
         "Operating System :: OS Independent",
         "Development Status :: 5 - Production/Stable",
     ],
     project_urls={
         "Bug Reports": "https://forge.softwareheritage.org/maniphest",
         "Funding": "https://www.softwareheritage.org/donate",
         "Source": "https://forge.softwareheritage.org/source/swh-loader-core",
         "Documentation": "https://docs.softwareheritage.org/devel/swh-loader-core/",
     },
 )
diff --git a/swh.loader.core.egg-info/PKG-INFO b/swh.loader.core.egg-info/PKG-INFO
index 49b7c53..369d7ce 100644
--- a/swh.loader.core.egg-info/PKG-INFO
+++ b/swh.loader.core.egg-info/PKG-INFO
@@ -1,55 +1,55 @@
 Metadata-Version: 2.1
 Name: swh.loader.core
-Version: 5.0.0
+Version: 5.1.0
 Summary: Software Heritage Base Loader
 Home-page: https://forge.softwareheritage.org/diffusion/DLDBASE
 Author: Software Heritage developers
 Author-email: swh-devel@inria.fr
 Project-URL: Bug Reports, https://forge.softwareheritage.org/maniphest
 Project-URL: Funding, https://www.softwareheritage.org/donate
 Project-URL: Source, https://forge.softwareheritage.org/source/swh-loader-core
 Project-URL: Documentation, https://docs.softwareheritage.org/devel/swh-loader-core/
 Classifier: Programming Language :: Python :: 3
 Classifier: Intended Audience :: Developers
 Classifier: License :: OSI Approved :: GNU General Public License v3 (GPLv3)
 Classifier: Operating System :: OS Independent
 Classifier: Development Status :: 5 - Production/Stable
 Requires-Python: >=3.7
 Description-Content-Type: text/markdown
 Provides-Extra: testing
 License-File: LICENSE
 License-File: AUTHORS
 
 Software Heritage - Loader foundations
 ======================================
 
 The Software Heritage Loader Core is a low-level loading utilities and
 helpers used by :term:`loaders <loader>`.
 
 The main entry points are classes:
 - :class:`swh.loader.core.loader.BaseLoader` for VCS loaders (e.g. svn)
 - :class:`swh.loader.core.loader.DVCSLoader` for DVCS loaders (e.g. git, ...)
 - :class:`swh.loader.core.loader.ContentLoader` for Content loader
 - :class:`swh.loader.core.loader.DirectoryLoader` for Directory loader
 - :class:`swh.loader.package.loader.PackageLoader` for Package loaders (e.g. PyPI, Npm, ...)
 - ...
 
 Package loaders
 ---------------
 
 This package also implements many package loaders directly, out of convenience,
 as they usually are quite similar and each fits in a single file.
 
 They all roughly follow these steps, explained in the
 :py:meth:`swh.loader.package.loader.PackageLoader.load` documentation.
 See the :ref:`package-loader-tutorial` for details.
 
 VCS loaders
 -----------
 
 Unlike package loaders, VCS loaders remain in separate packages,
 as they often need more advanced conversions and very VCS-specific operations.
 
 This usually involves getting the branches of a repository and recursively loading
 revisions in the history (and directory trees in these revisions),
 until a known revision is found
diff --git a/swh.loader.core.egg-info/SOURCES.txt b/swh.loader.core.egg-info/SOURCES.txt
index 8a2b351..72f775f 100644
--- a/swh.loader.core.egg-info/SOURCES.txt
+++ b/swh.loader.core.egg-info/SOURCES.txt
@@ -1,327 +1,336 @@
 .git-blame-ignore-revs
 .gitignore
 .pre-commit-config.yaml
 AUTHORS
 CODE_OF_CONDUCT.md
 CONTRIBUTORS
 LICENSE
 MANIFEST.in
 Makefile
 README.rst
 conftest.py
 mypy.ini
 pyproject.toml
 pytest.ini
 requirements-swh.txt
 requirements-test.txt
 requirements.txt
 setup.cfg
 setup.py
 tox.ini
 docs/.gitignore
 docs/Makefile
 docs/README.rst
 docs/cli.rst
 docs/conf.py
 docs/index.rst
 docs/package-loader-specifications.rst
 docs/package-loader-tutorial.rst
 docs/vcs-loader-overview.rst
 docs/_static/.placeholder
 docs/_templates/.placeholder
 swh/__init__.py
 swh.loader.core.egg-info/PKG-INFO
 swh.loader.core.egg-info/SOURCES.txt
 swh.loader.core.egg-info/dependency_links.txt
 swh.loader.core.egg-info/entry_points.txt
 swh.loader.core.egg-info/requires.txt
 swh.loader.core.egg-info/top_level.txt
 swh/loader/__init__.py
 swh/loader/cli.py
 swh/loader/exception.py
 swh/loader/pytest_plugin.py
 swh/loader/core/__init__.py
 swh/loader/core/converters.py
 swh/loader/core/discovery.py
 swh/loader/core/loader.py
 swh/loader/core/metadata_fetchers.py
 swh/loader/core/py.typed
 swh/loader/core/tasks.py
 swh/loader/core/utils.py
 swh/loader/core/tests/__init__.py
 swh/loader/core/tests/conftest.py
 swh/loader/core/tests/test_converters.py
 swh/loader/core/tests/test_loader.py
 swh/loader/core/tests/test_tasks.py
 swh/loader/core/tests/test_utils.py
 swh/loader/core/tests/data/https_common-lisp.net/project_asdf_archives_asdf-3.3.5.lisp
 swh/loader/core/tests/data/https_example.org/archives_dummy-hello.tar.gz
 swh/loader/package/__init__.py
 swh/loader/package/loader.py
 swh/loader/package/py.typed
 swh/loader/package/utils.py
 swh/loader/package/arch/__init__.py
 swh/loader/package/arch/loader.py
 swh/loader/package/arch/tasks.py
 swh/loader/package/arch/tests/__init__.py
 swh/loader/package/arch/tests/test_arch.py
 swh/loader/package/arch/tests/test_tasks.py
 swh/loader/package/arch/tests/data/fake_arch.sh
 swh/loader/package/arch/tests/data/https_archive.archlinux.org/packages_d_dialog_dialog-1:1.3_20190211-1-x86_64.pkg.tar.xz
 swh/loader/package/arch/tests/data/https_archive.archlinux.org/packages_d_dialog_dialog-1:1.3_20220414-1-x86_64.pkg.tar.zst
 swh/loader/package/arch/tests/data/https_uk.mirror.archlinuxarm.org/aarch64_core_gzip-1.12-1-aarch64.pkg.tar.xz
 swh/loader/package/archive/__init__.py
 swh/loader/package/archive/loader.py
 swh/loader/package/archive/tasks.py
 swh/loader/package/archive/tests/__init__.py
 swh/loader/package/archive/tests/test_archive.py
 swh/loader/package/archive/tests/test_tasks.py
 swh/loader/package/archive/tests/data/not_gzipped_tarball.tar.gz
 swh/loader/package/archive/tests/data/https_ftp.gnu.org/gnu_8sync_8sync-0.1.0.tar.gz
 swh/loader/package/archive/tests/data/https_ftp.gnu.org/gnu_8sync_8sync-0.1.0.tar.gz_visit1
 swh/loader/package/archive/tests/data/https_ftp.gnu.org/gnu_8sync_8sync-0.1.0.tar.gz_visit2
 swh/loader/package/archive/tests/data/https_ftp.gnu.org/gnu_8sync_8sync-0.2.0.tar.gz
 swh/loader/package/aur/__init__.py
 swh/loader/package/aur/loader.py
 swh/loader/package/aur/tasks.py
 swh/loader/package/aur/tests/__init__.py
 swh/loader/package/aur/tests/test_aur.py
 swh/loader/package/aur/tests/test_tasks.py
 swh/loader/package/aur/tests/data/fake_aur.sh
 swh/loader/package/aur/tests/data/https_aur.archlinux.org/cgit_aur.git_snapshot_a-fake-one.tar.gz
 swh/loader/package/aur/tests/data/https_aur.archlinux.org/cgit_aur.git_snapshot_hg-evolve.tar.gz
 swh/loader/package/aur/tests/data/https_aur.archlinux.org/cgit_aur.git_snapshot_ibus-git.tar.gz
 swh/loader/package/aur/tests/data/https_aur.archlinux.org/cgit_aur.git_snapshot_libervia-web-hg.tar.gz
 swh/loader/package/aur/tests/data/https_aur.archlinux.org/cgit_aur.git_snapshot_tealdeer-git.tar.gz
+swh/loader/package/conda/__init__.py
+swh/loader/package/conda/loader.py
+swh/loader/package/conda/tasks.py
+swh/loader/package/conda/tests/__init__.py
+swh/loader/package/conda/tests/test_conda.py
+swh/loader/package/conda/tests/test_tasks.py
+swh/loader/package/conda/tests/data/fake_conda.sh
+swh/loader/package/conda/tests/data/https_conda.anaconda.org/conda-forge_linux-64_lifetimes-0.11.1-py36h9f0ad1d_1.tar.bz2
+swh/loader/package/conda/tests/data/https_conda.anaconda.org/conda-forge_linux-64_lifetimes-0.11.1-py36hc560c46_1.tar.bz2
 swh/loader/package/cpan/__init__.py
 swh/loader/package/cpan/loader.py
 swh/loader/package/cpan/tasks.py
 swh/loader/package/cpan/tests/__init__.py
 swh/loader/package/cpan/tests/test_cpan.py
 swh/loader/package/cpan/tests/test_tasks.py
 swh/loader/package/cpan/tests/data/https_cpan.metacpan.org/authors_id_J_JJ_JJORE_Internals-CountObjects-0.01.tar.gz
 swh/loader/package/cpan/tests/data/https_cpan.metacpan.org/authors_id_J_JJ_JJORE_Internals-CountObjects-0.05.tar.gz
 swh/loader/package/cpan/tests/data/https_fastapi.metacpan.org/v1_release_JJORE_Internals-CountObjects-0.01
 swh/loader/package/cpan/tests/data/https_fastapi.metacpan.org/v1_release_JJORE_Internals-CountObjects-0.05
 swh/loader/package/cran/__init__.py
 swh/loader/package/cran/loader.py
 swh/loader/package/cran/tasks.py
 swh/loader/package/cran/tests/__init__.py
 swh/loader/package/cran/tests/test_cran.py
 swh/loader/package/cran/tests/test_tasks.py
 swh/loader/package/cran/tests/data/description/KnownBR
 swh/loader/package/cran/tests/data/description/acepack
 swh/loader/package/cran/tests/data/https_cran.r-project.org/src_contrib_1.4.0_Recommended_KernSmooth_2.22-6.tar.gz
 swh/loader/package/crates/__init__.py
 swh/loader/package/crates/loader.py
 swh/loader/package/crates/tasks.py
 swh/loader/package/crates/tests/__init__.py
 swh/loader/package/crates/tests/test_crates.py
 swh/loader/package/crates/tests/test_tasks.py
 swh/loader/package/crates/tests/data/fake_crates.sh
 swh/loader/package/crates/tests/data/https_crates.io/api_v1_crates_hg-core
 swh/loader/package/crates/tests/data/https_crates.io/api_v1_crates_micro-timer
 swh/loader/package/crates/tests/data/https_static.crates.io/crates_hg-core_hg-core-0.0.1.crate
 swh/loader/package/crates/tests/data/https_static.crates.io/crates_micro-timer_micro-timer-0.1.0.crate
 swh/loader/package/crates/tests/data/https_static.crates.io/crates_micro-timer_micro-timer-0.1.1.crate
 swh/loader/package/crates/tests/data/https_static.crates.io/crates_micro-timer_micro-timer-0.1.2.crate
 swh/loader/package/crates/tests/data/https_static.crates.io/crates_micro-timer_micro-timer-0.2.0.crate
 swh/loader/package/crates/tests/data/https_static.crates.io/crates_micro-timer_micro-timer-0.2.1.crate
 swh/loader/package/crates/tests/data/https_static.crates.io/crates_micro-timer_micro-timer-0.3.0.crate
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 swh/loader/package/tests/common.py
 swh/loader/package/tests/test_conftest.py
 swh/loader/package/tests/test_loader.py
 swh/loader/package/tests/test_loader_metadata.py
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 swh/loader/package/tests/data/https_example.org/package_example_example-v3.0.tar.gz
 swh/loader/package/tests/data/https_example.org/package_example_example-v4.0.tar.gz
 swh/loader/tests/__init__.py
 swh/loader/tests/conftest.py
 swh/loader/tests/py.typed
 swh/loader/tests/test_cli.py
 swh/loader/tests/test_init.py
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\ No newline at end of file
diff --git a/swh.loader.core.egg-info/entry_points.txt b/swh.loader.core.egg-info/entry_points.txt
index b303193..1c1d58b 100644
--- a/swh.loader.core.egg-info/entry_points.txt
+++ b/swh.loader.core.egg-info/entry_points.txt
@@ -1,22 +1,23 @@
 [swh.cli.subcommands]
 loader = swh.loader.cli
 
 [swh.workers]
 loader.arch = swh.loader.package.arch:register
 loader.archive = swh.loader.package.archive:register
 loader.aur = swh.loader.package.aur:register
+loader.conda = swh.loader.package.conda:register
 loader.content = swh.loader.core:register_content
 loader.cpan = swh.loader.package.cpan:register
 loader.cran = swh.loader.package.cran:register
 loader.crates = swh.loader.package.crates:register
 loader.debian = swh.loader.package.debian:register
 loader.deposit = swh.loader.package.deposit:register
 loader.directory = swh.loader.core:register_directory
 loader.golang = swh.loader.package.golang:register
 loader.maven = swh.loader.package.maven:register
 loader.nixguix = swh.loader.package.nixguix:register
 loader.npm = swh.loader.package.npm:register
 loader.opam = swh.loader.package.opam:register
 loader.pubdev = swh.loader.package.pubdev:register
 loader.puppet = swh.loader.package.puppet:register
 loader.pypi = swh.loader.package.pypi:register
diff --git a/swh/loader/package/conda/__init__.py b/swh/loader/package/conda/__init__.py
new file mode 100644
index 0000000..8d29fdd
--- /dev/null
+++ b/swh/loader/package/conda/__init__.py
@@ -0,0 +1,17 @@
+# Copyright (C) 2022  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+
+from typing import Any, Mapping
+
+
+def register() -> Mapping[str, Any]:
+    """Register the current worker module's definition"""
+    from .loader import CondaLoader
+
+    return {
+        "task_modules": [f"{__name__}.tasks"],
+        "loader": CondaLoader,
+    }
diff --git a/swh/loader/package/conda/loader.py b/swh/loader/package/conda/loader.py
new file mode 100644
index 0000000..5668702
--- /dev/null
+++ b/swh/loader/package/conda/loader.py
@@ -0,0 +1,180 @@
+# Copyright (C) 2022  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+from datetime import datetime
+import json
+from pathlib import Path
+from typing import Any, Dict, Iterator, List, Optional, Sequence, Tuple
+
+import attr
+import iso8601
+from packaging.version import parse as parse_version
+import yaml
+
+from swh.loader.package.loader import BasePackageInfo, PackageLoader
+from swh.loader.package.utils import EMPTY_AUTHOR, Person, get_url_body, release_name
+from swh.model.model import ObjectType, Release, Sha1Git, TimestampWithTimezone
+from swh.storage.interface import StorageInterface
+
+
+@attr.s
+class CondaPackageInfo(BasePackageInfo):
+
+    name = attr.ib(type=str)
+    """Name of the package"""
+
+    filename = attr.ib(type=str)
+    """Archive (tar.gz) file name"""
+
+    version = attr.ib(type=str)
+    """Complete version and distribution name. Ex: 'linux-64/0.1.1-py37'
+    """
+
+    last_modified: Optional[datetime] = attr.ib()
+    """File last modified date as release date"""
+
+
+def extract_intrinsic_metadata(dir_path: Path) -> Dict[str, Any]:
+    """Extract intrinsic metadata from file at dir_path.
+
+    Each Conda package version may have an info/about.json file in the
+    archive. If missing we try to get metadata from info/recipe/meta.yaml
+
+    See https://docs.conda.io/projects/conda/en/latest/user-guide/concepts/pkg-specs.html?highlight=meta.yaml#info-about-json  # noqa: B950
+    for package specifications.
+
+    Args:
+        dir_path: A directory on disk where a metadata file can be found
+
+    Returns:
+        A dict mapping from yaml parser
+    """
+    metadata: Dict[str, Any] = {}
+
+    meta_json_path = dir_path / "info" / "about.json"
+    meta_yml_path = dir_path / "info" / "recipe" / "meta.yaml"
+
+    if meta_json_path.exists():
+        try:
+            metadata = json.loads(meta_json_path.read_text())
+        except json.JSONDecodeError:
+            pass
+
+    if meta_yml_path.exists() and not metadata:
+        try:
+            metadata = yaml.safe_load(meta_yml_path.read_text())
+        except yaml.YAMLError:
+            pass
+
+    return metadata
+
+
+class CondaLoader(PackageLoader[CondaPackageInfo]):
+    visit_type = "conda"
+
+    def __init__(
+        self,
+        storage: StorageInterface,
+        url: str,
+        artifacts: List[Dict[str, Any]],
+        **kwargs,
+    ):
+
+        super().__init__(storage=storage, url=url, **kwargs)
+        self.url = url
+        self.artifacts: Dict[str, Dict] = {
+            artifact["version"]: artifact for artifact in artifacts
+        }
+
+    def _raw_info(self, url: str, **extra_params) -> bytes:
+        return get_url_body(url=url, **extra_params)
+
+    def get_versions(self) -> Sequence[str]:
+        """Get all released versions of a Conda package
+
+        Returns:
+            A sequence of versions
+
+            Example::
+
+                ["0.1.1", "0.10.2"]
+        """
+        versions = list(self.artifacts.keys())
+        versions.sort(key=parse_version)
+        return versions
+
+    def get_default_version(self) -> str:
+        """Get the newest release version of a Conda package
+
+        Returns:
+            A string representing a version
+
+            Example::
+
+                "0.10.2"
+        """
+        return self.get_versions()[-1]
+
+    def get_package_info(self, version: str) -> Iterator[Tuple[str, CondaPackageInfo]]:
+        """Get release name and package information from version
+
+        Args:
+            version: Package version (e.g: "0.1.0")
+
+        Returns:
+            Iterator of tuple (release_name, p_info)
+        """
+        data = self.artifacts[version]
+        pkgname: str = self.url.split("/")[-1]
+        url: str = data["url"]
+        filename: str = data["filename"]
+
+        last_modified = None
+        if data.get("date"):
+            last_modified = iso8601.parse_date(data["date"])
+
+        p_info = CondaPackageInfo(
+            name=pkgname,
+            filename=filename,
+            url=url,
+            version=version,
+            last_modified=last_modified,
+            checksums=data["checksums"],
+        )
+        yield release_name(version), p_info
+
+    def build_release(
+        self, p_info: CondaPackageInfo, uncompressed_path: str, directory: Sha1Git
+    ) -> Optional[Release]:
+
+        # Extract intrinsic metadata from archive to get description and author
+        metadata = extract_intrinsic_metadata(Path(uncompressed_path))
+
+        author = EMPTY_AUTHOR
+        maintainers = metadata.get("extra", {}).get("recipe-maintainers")
+        if maintainers and isinstance(maintainers, list) and any(maintainers):
+            # TODO: here we have a list of author, see T3887
+            author = Person.from_fullname(maintainers[0].encode())
+
+        message = (
+            f"Synthetic release for Conda source package {p_info.name} "
+            f"version {p_info.version}\n"
+        )
+
+        last_modified = (
+            TimestampWithTimezone.from_datetime(p_info.last_modified)
+            if p_info.last_modified
+            else None
+        )
+
+        return Release(
+            name=p_info.version.encode(),
+            author=author,
+            date=last_modified,
+            message=message.encode(),
+            target_type=ObjectType.DIRECTORY,
+            target=directory,
+            synthetic=True,
+        )
diff --git a/swh/loader/package/conda/tasks.py b/swh/loader/package/conda/tasks.py
new file mode 100644
index 0000000..d07e1f3
--- /dev/null
+++ b/swh/loader/package/conda/tasks.py
@@ -0,0 +1,14 @@
+# Copyright (C) 2022  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+from celery import shared_task
+
+from swh.loader.package.conda.loader import CondaLoader
+
+
+@shared_task(name=__name__ + ".LoadConda")
+def load_conda(**kwargs):
+    """Load packages from Conda"""
+    return CondaLoader.from_configfile(**kwargs).load()
diff --git a/swh/loader/package/conda/tests/__init__.py b/swh/loader/package/conda/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/swh/loader/package/conda/tests/data/fake_conda.sh b/swh/loader/package/conda/tests/data/fake_conda.sh
new file mode 100644
index 0000000..2de0a4f
--- /dev/null
+++ b/swh/loader/package/conda/tests/data/fake_conda.sh
@@ -0,0 +1,230 @@
+#!/usr/bin/env bash
+
+# Script to generate fake Conda package archives as .tar.gz.
+
+set -euo pipefail
+
+# Create directories
+readonly TMP=tmp_dir/cpan
+readonly BASE_PATH=https_conda.anaconda.org
+
+mkdir -p $TMP
+
+# tar.gz package archives
+# Conda package tar.gz archive needs at least one 'info' directory to store json
+# or yaml metadata
+
+mkdir -p $BASE_PATH
+
+mkdir -p ${TMP}/lifetimes-0.11.1-py36h9f0ad1d_1/info/
+
+mkdir -p ${TMP}/lifetimes-0.11.1-py36hc560c46_1/info/recipe/
+
+echo -e '''{
+  "channels": [
+    "conda-forge",
+    "defaults",
+    "https://conda.anaconda.org/conda-forge"
+  ],
+  "conda_build_version": "3.19.2",
+  "conda_private": false,
+  "conda_version": "4.8.3",
+  "doc_url": "https://lifetimes.readthedocs.io/en/latest/?badge=latest",
+  "env_vars": {
+    "CIO_TEST": "<not set>"
+  },
+  "extra": {
+    "copy_test_source_files": true,
+    "final": true,
+    "recipe-maintainers": [
+      "CamDavidsonPilon",
+      "Arnoldosmium"
+    ]
+  },
+  "home": "https://github.com/CamDavidsonPilon/lifetimes",
+  "identifiers": [],
+  "keywords": [],
+  "license": "MIT",
+  "license_family": "MIT",
+  "license_file": "README.md",
+  "root_pkgs": [
+    "yaml 0.2.5 h516909a_0",
+    "python-libarchive-c 2.9 py37_0",
+    "openssl 1.1.1g h516909a_0",
+    "lzo 2.10 h14c3975_1000",
+    "pkginfo 1.5.0.1 py_0",
+    "git 2.27.0 pl526h5e3e691_0",
+    "libgcc-ng 9.2.0 h24d8f2e_2",
+    "perl 5.26.2 h516909a_1006",
+    "gettext 0.19.8.1 hc5be6a0_1002",
+    "libarchive 3.3.3 h3a8160c_1008",
+    "libiconv 1.15 h516909a_1006",
+    "wheel 0.34.2 py_1",
+    "libstdcxx-ng 9.2.0 hdf63c60_2",
+    "attrs 19.3.0 py_0",
+    "libgomp 9.2.0 h24d8f2e_2",
+    "bzip2 1.0.8 h516909a_2",
+    "jsonschema 3.2.0 py37hc8dfbb8_1",
+    "tk 8.6.10 hed695b0_0",
+    "icu 67.1 he1b5a44_0",
+    "cffi 1.14.0 py37hd463f26_0",
+    "psutil 5.7.0 py37h8f50634_1",
+    "_libgcc_mutex 0.1 conda_forge",
+    "pycosat 0.6.3 py37h8f50634_1004",
+    "python_abi 3.7 1_cp37m",
+    "tini 0.18.0 h14c3975_1001",
+    "ruamel_yaml 0.15.80 py37h8f50634_1001",
+    "readline 8.0 hf8c457e_0",
+    "jinja2 2.11.2 pyh9f0ad1d_0",
+    "idna 2.10 pyh9f0ad1d_0",
+    "soupsieve 2.0.1 py37hc8dfbb8_0",
+    "nbformat 5.0.6 py_0",
+    "expat 2.2.9 he1b5a44_2",
+    "six 1.15.0 pyh9f0ad1d_0",
+    "clyent 1.2.2 py_1",
+    "pcre 8.44 he1b5a44_0",
+    "setuptools 49.1.0 py37hc8dfbb8_0",
+    "libssh2 1.9.0 hab1572f_2",
+    "pysocks 1.7.1 py37hc8dfbb8_1",
+    "sqlite 3.32.3 hcee41ef_0",
+    "pyopenssl 19.1.0 py_1",
+    "certifi 2020.6.20 py37hc8dfbb8_0",
+    "zipp 3.1.0 py_0",
+    "ipython_genutils 0.2.0 py_1",
+    "pyrsistent 0.16.0 py37h8f50634_0",
+    "importlib-metadata 1.7.0 py37hc8dfbb8_0",
+    "brotlipy 0.7.0 py37h8f50634_1000",
+    "markupsafe 1.1.1 py37h8f50634_1",
+    "chardet 3.0.4 py37hc8dfbb8_1006",
+    "importlib_metadata 1.7.0 0",
+    "ld_impl_linux-64 2.34 h53a641e_5",
+    "ncurses 6.1 hf484d3e_1002",
+    "_openmp_mutex 4.5 0_gnu",
+    "libcurl 7.71.1 hcdd3856_0",
+    "ca-certificates 2020.6.20 hecda079_0",
+    "pyyaml 5.3.1 py37h8f50634_0",
+    "lz4-c 1.9.2 he1b5a44_1",
+    "libedit 3.1.20191231 h46ee950_0",
+    "su-exec 0.2 h516909a_1002",
+    "libffi 3.2.1 he1b5a44_1007",
+    "patchelf 0.11 he1b5a44_0",
+    "python 3.7.6 cpython_h8356626_6",
+    "conda 4.8.3 py37hc8dfbb8_1",
+    "tqdm 4.47.0 pyh9f0ad1d_0",
+    "cryptography 2.9.2 py37hb09aad4_0",
+    "pycparser 2.20 pyh9f0ad1d_2",
+    "glob2 0.7 py_0",
+    "zlib 1.2.11 h516909a_1006",
+    "jupyter_core 4.6.3 py37hc8dfbb8_1",
+    "liblief 0.9.0 hf8a498c_1",
+    "py-lief 0.9.0 py37he1b5a44_1",
+    "traitlets 4.3.3 py37hc8dfbb8_1",
+    "conda-package-handling 1.6.0 py37h8f50634_2",
+    "patch 2.7.6 h14c3975_1001",
+    "anaconda-client 1.7.2 py_0",
+    "filelock 3.0.12 pyh9f0ad1d_0",
+    "decorator 4.4.2 py_0",
+    "curl 7.71.1 he644dc0_0",
+    "requests 2.24.0 pyh9f0ad1d_0",
+    "libxml2 2.9.10 h72b56ed_1",
+    "python-dateutil 2.8.1 py_0",
+    "urllib3 1.25.9 py_0",
+    "zstd 1.4.4 h6597ccf_3",
+    "ripgrep 12.1.1 h516909a_0",
+    "beautifulsoup4 4.9.1 py37hc8dfbb8_0",
+    "xz 5.2.5 h516909a_0",
+    "pytz 2020.1 pyh9f0ad1d_0",
+    "krb5 1.17.1 hfafb76e_1",
+    "conda-build 3.19.2 py37hc8dfbb8_2",
+    "pip 20.1.1 py_1",
+    "conda-forge-ci-setup 2.8.4 py37hc8dfbb8_0",
+    "conda-env 2.6.0 1",
+    "click 7.1.2 pyh9f0ad1d_0"
+  ],
+  "summary": "Measure customer lifetime value in Python",
+  "tags": []
+}
+''' > ${TMP}/lifetimes-0.11.1-py36h9f0ad1d_1/info/about.json
+
+echo -e """# This file created by conda-build 3.19.2
+# meta.yaml template originally from:
+# /home/conda/recipe_root, last modified Mon Jul  6 12:16:32 2020
+# ------------------------------------------------
+
+package:
+    name: lifetimes
+    version: 0.11.1
+source:
+    sha256: 75862d86581e75f0c235d830590bea0a9062222f2c9c390949f6432a3fa329b4
+    url: https://pypi.io/packages/source/L/Lifetimes/Lifetimes-0.11.1.tar.gz
+build:
+    number: '1'
+    script: '/home/conda/feedstock_root/build_artifacts/lifetimes_1594037875906/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_p/bin/python
+        -m pip install . --no-deps --ignore-installed -vv '
+    string: py36hc560c46_1
+requirements:
+    host:
+        - _libgcc_mutex 0.1 conda_forge
+        - _openmp_mutex 4.5 0_gnu
+        - bzip2 1.0.8 h516909a_2
+        - ca-certificates 2020.6.20 hecda079_0
+        - certifi 2020.6.20 py36hc560c46_0
+        - expat 2.2.9 he1b5a44_2
+        - gdbm 1.18 h0a1914f_1
+        - libffi 3.2.1 he1b5a44_1007
+        - libgcc-ng 9.2.0 h24d8f2e_2
+        - libgomp 9.2.0 h24d8f2e_2
+        - libstdcxx-ng 9.2.0 hdf63c60_2
+        - ncurses 6.1 hf484d3e_1002
+        - openssl 1.1.1g h516909a_0
+        - pip 20.1.1 py_1
+        - pypy3.6 7.3.1 h3e02ecb_1
+        - python 3.6.9 2_73_pypy
+        - python_abi 3.6 1_pypy36_pp73
+        - readline 8.0 hf8c457e_0
+        - setuptools 49.1.0 py36hc560c46_0
+        - sqlite 3.32.3 hcee41ef_0
+        - tk 8.6.10 hed695b0_0
+        - wheel 0.34.2 py_1
+        - xz 5.2.5 h516909a_0
+        - zlib 1.2.11 h516909a_1006
+    run:
+        - autograd >=1.2.0
+        - dill >=0.2.6
+        - numpy >=1.10.0
+        - pandas >=0.24.0
+        - pypy3.6 >=7.3.1
+        - python >=3.6,<3.7.0a0
+        - python_abi 3.6 *_pypy36_pp73
+        - scipy >=1.0.0
+        - setuptools
+test:
+    imports:
+        - lifetimes
+        - lifetimes.datasets
+about:
+    doc_url: https://lifetimes.readthedocs.io/en/latest/?badge=latest
+    home: https://github.com/CamDavidsonPilon/lifetimes
+    license: MIT
+    license_family: MIT
+    license_file: README.md
+    summary: Measure customer lifetime value in Python
+extra:
+    copy_test_source_files: true
+    final: true
+    recipe-maintainers:
+        - null
+""" > ${TMP}/lifetimes-0.11.1-py36hc560c46_1/info/recipe/meta.yaml
+
+cd $TMP
+
+# Tar compress
+tar -cvjSf conda-forge_linux-64_lifetimes-0.11.1-py36h9f0ad1d_1.tar.bz2 -C lifetimes-0.11.1-py36h9f0ad1d_1 .
+tar -cvjSf conda-forge_linux-64_lifetimes-0.11.1-py36hc560c46_1.tar.bz2 -C lifetimes-0.11.1-py36hc560c46_1 .
+
+# Move .tar.bz2 archives to a servable directory
+mv *.tar.bz2 ../../$BASE_PATH
+
+# Clean up removing tmp_dir
+cd ../../
+rm -r tmp_dir/
diff --git a/swh/loader/package/conda/tests/data/https_conda.anaconda.org/conda-forge_linux-64_lifetimes-0.11.1-py36h9f0ad1d_1.tar.bz2 b/swh/loader/package/conda/tests/data/https_conda.anaconda.org/conda-forge_linux-64_lifetimes-0.11.1-py36h9f0ad1d_1.tar.bz2
new file mode 100644
index 0000000..20e4311
Binary files /dev/null and b/swh/loader/package/conda/tests/data/https_conda.anaconda.org/conda-forge_linux-64_lifetimes-0.11.1-py36h9f0ad1d_1.tar.bz2 differ
diff --git a/swh/loader/package/conda/tests/data/https_conda.anaconda.org/conda-forge_linux-64_lifetimes-0.11.1-py36hc560c46_1.tar.bz2 b/swh/loader/package/conda/tests/data/https_conda.anaconda.org/conda-forge_linux-64_lifetimes-0.11.1-py36hc560c46_1.tar.bz2
new file mode 100644
index 0000000..8b4a464
Binary files /dev/null and b/swh/loader/package/conda/tests/data/https_conda.anaconda.org/conda-forge_linux-64_lifetimes-0.11.1-py36hc560c46_1.tar.bz2 differ
diff --git a/swh/loader/package/conda/tests/test_conda.py b/swh/loader/package/conda/tests/test_conda.py
new file mode 100644
index 0000000..6af23ef
--- /dev/null
+++ b/swh/loader/package/conda/tests/test_conda.py
@@ -0,0 +1,156 @@
+# Copyright (C) 2022  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+from swh.loader.package.conda.loader import CondaLoader
+from swh.loader.tests import assert_last_visit_matches, check_snapshot, get_stats
+from swh.model.hashutil import hash_to_bytes
+from swh.model.model import (
+    ObjectType,
+    Person,
+    Release,
+    Snapshot,
+    SnapshotBranch,
+    TargetType,
+    TimestampWithTimezone,
+)
+
+ORIGINS = [
+    {
+        "url": "https://anaconda.org/conda-forge/lifetimes",
+        "artifacts": [
+            {
+                "url": "https://conda.anaconda.org/conda-forge/linux-64/lifetimes-0.11.1-py36h9f0ad1d_1.tar.bz2",  # noqa: B950
+                "date": "2020-07-06T12:19:36.425000+00:00",
+                "version": "linux-64/0.11.1-py36h9f0ad1d_1",
+                "filename": "lifetimes-0.11.1-py36h9f0ad1d_1.tar.bz2",
+                "checksums": {
+                    "md5": "5cbc765bd910a62315f340988f329768",
+                    "sha256": "44f91fa4fd77aea15dcba382b3f20e13a6ae1d48eedb9ae6b3c3a0709bbdb76e",  # noqa: B950
+                },
+            },
+            {
+                "url": "https://conda.anaconda.org/conda-forge/linux-64/lifetimes-0.11.1-py36hc560c46_1.tar.bz2",  # noqa: B950
+                "date": "",  # Empty date
+                "version": "linux-64/0.11.1-py36hc560c46_1",
+                "filename": "lifetimes-0.11.1-py36hc560c46_1.tar.bz2",
+                "checksums": {
+                    "md5": "14d2908d3b625ffd3f8d1fc0f20eaa07",
+                    "sha256": "46f5c5ab12338ec7b546d930a75c39633762fb2dac5f486fefebabbc4705c6c1",  # noqa: B950
+                },
+            },
+        ],
+    },
+]
+
+
+def test_get_versions(requests_mock_datadir, swh_storage):
+    loader = CondaLoader(
+        swh_storage, url=ORIGINS[0]["url"], artifacts=ORIGINS[0]["artifacts"]
+    )
+    assert loader.get_versions() == [
+        "linux-64/0.11.1-py36h9f0ad1d_1",
+        "linux-64/0.11.1-py36hc560c46_1",
+    ]
+
+
+def test_get_default_version(requests_mock_datadir, swh_storage):
+    loader = CondaLoader(
+        swh_storage, url=ORIGINS[0]["url"], artifacts=ORIGINS[0]["artifacts"]
+    )
+    assert loader.get_default_version() == "linux-64/0.11.1-py36hc560c46_1"
+
+
+def test_conda_loader_load_multiple_version(
+    datadir, requests_mock_datadir, swh_storage
+):
+    loader = CondaLoader(
+        swh_storage, url=ORIGINS[0]["url"], artifacts=ORIGINS[0]["artifacts"]
+    )
+    load_status = loader.load()
+    assert load_status["status"] == "eventful"
+    assert load_status["snapshot_id"] is not None
+
+    expected_snapshot_id = "9c20bedf9af54ef7b3937fe4675f9f17b9331b7b"
+
+    assert expected_snapshot_id == load_status["snapshot_id"]
+
+    expected_snapshot = Snapshot(
+        id=hash_to_bytes(load_status["snapshot_id"]),
+        branches={
+            b"releases/linux-64/0.11.1-py36h9f0ad1d_1": SnapshotBranch(
+                target=hash_to_bytes("9848f61b501801799025d632221833a0f988dca2"),
+                target_type=TargetType.RELEASE,
+            ),
+            b"releases/linux-64/0.11.1-py36hc560c46_1": SnapshotBranch(
+                target=hash_to_bytes("fad38f867db9311504a4c340f2b32dcdffa46e27"),
+                target_type=TargetType.RELEASE,
+            ),
+            b"HEAD": SnapshotBranch(
+                target=b"releases/linux-64/0.11.1-py36hc560c46_1",
+                target_type=TargetType.ALIAS,
+            ),
+        },
+    )
+
+    check_snapshot(expected_snapshot, swh_storage)
+
+    stats = get_stats(swh_storage)
+    assert {
+        "content": 1 + 1,
+        "directory": 2 + 3,
+        "origin": 1,
+        "origin_visit": 1,
+        "release": 1 + 1,
+        "revision": 0,
+        "skipped_content": 0,
+        "snapshot": 1,
+    } == stats
+
+    assert swh_storage.release_get(
+        [hash_to_bytes("9848f61b501801799025d632221833a0f988dca2")]
+    )[0] == Release(
+        name=b"linux-64/0.11.1-py36h9f0ad1d_1",
+        message=b"Synthetic release for Conda source package lifetimes version"
+        b" linux-64/0.11.1-py36h9f0ad1d_1\n",
+        target=hash_to_bytes("0c63e5f909e481d8e5832bac8abbd089bca42993"),
+        target_type=ObjectType.DIRECTORY,
+        synthetic=True,
+        author=Person(
+            fullname=b"CamDavidsonPilon", name=b"CamDavidsonPilon", email=None
+        ),
+        date=TimestampWithTimezone.from_iso8601("2020-07-06T12:19:36.425000+00:00"),
+        id=hash_to_bytes("9848f61b501801799025d632221833a0f988dca2"),
+    )
+
+    assert_last_visit_matches(
+        swh_storage,
+        url=ORIGINS[0]["url"],
+        status="full",
+        type="conda",
+        snapshot=hash_to_bytes(load_status["snapshot_id"]),
+    )
+
+    # This one have empty author and date
+    assert swh_storage.release_get(
+        [hash_to_bytes("fad38f867db9311504a4c340f2b32dcdffa46e27")]
+    )[0] == Release(
+        name=b"linux-64/0.11.1-py36hc560c46_1",
+        message=b"Synthetic release for Conda source package lifetimes version"
+        b" linux-64/0.11.1-py36hc560c46_1\n",
+        target=hash_to_bytes("45ca406aeb31f51836a8593b619ab216403ce489"),
+        target_type=ObjectType.DIRECTORY,
+        synthetic=True,
+        author=Person(fullname=b"", name=None, email=None),
+        date=None,
+        id=hash_to_bytes("fad38f867db9311504a4c340f2b32dcdffa46e27"),
+    )
+
+    assert_last_visit_matches(
+        swh_storage,
+        url=ORIGINS[0]["url"],
+        status="full",
+        type="conda",
+        snapshot=hash_to_bytes(load_status["snapshot_id"]),
+    )
diff --git a/swh/loader/package/conda/tests/test_tasks.py b/swh/loader/package/conda/tests/test_tasks.py
new file mode 100644
index 0000000..d17d126
--- /dev/null
+++ b/swh/loader/package/conda/tests/test_tasks.py
@@ -0,0 +1,42 @@
+# Copyright (C) 2022  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+import uuid
+
+import pytest
+
+from swh.scheduler.model import ListedOrigin, Lister
+
+NAMESPACE = "swh.loader.package.conda"
+
+
+@pytest.fixture
+def conda_lister():
+    return Lister(name="conda", instance_name="example", id=uuid.uuid4())
+
+
+@pytest.fixture
+def conda_listed_origin(conda_lister):
+    return ListedOrigin(
+        lister_id=conda_lister.id,
+        url="https://anaconda.org/channel/some-package",
+        visit_type="conda",
+        extra_loader_arguments={
+            "artifacts": [{"version": "0.0.1", "url": "some-package-0.0.1.tar.bz2"}],
+        },
+    )
+
+
+def test_conda_loader_task_for_listed_origin(
+    loading_task_creation_for_listed_origin_test,
+    conda_lister,
+    conda_listed_origin,
+):
+    loading_task_creation_for_listed_origin_test(
+        loader_class_name=f"{NAMESPACE}.loader.CondaLoader",
+        task_function_name=f"{NAMESPACE}.tasks.LoadConda",
+        lister=conda_lister,
+        listed_origin=conda_listed_origin,
+    )
diff --git a/swh/loader/package/puppet/loader.py b/swh/loader/package/puppet/loader.py
index 6f0221e..a171980 100644
--- a/swh/loader/package/puppet/loader.py
+++ b/swh/loader/package/puppet/loader.py
@@ -1,153 +1,153 @@
 # Copyright (C) 2022  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from datetime import datetime
 import json
 from pathlib import Path
-from typing import Any, Dict, Iterator, Optional, Sequence, Tuple
+from typing import Any, Dict, Iterator, List, Optional, Sequence, Tuple
 
 import attr
 import iso8601
 from packaging.version import parse as parse_version
 
 from swh.loader.package.loader import BasePackageInfo, PackageLoader
 from swh.loader.package.utils import Person, release_name
 from swh.model.model import ObjectType, Release, Sha1Git, TimestampWithTimezone
 from swh.storage.interface import StorageInterface
 
 
 @attr.s
 class PuppetPackageInfo(BasePackageInfo):
 
     name = attr.ib(type=str)
     """Name of the package"""
 
     filename = attr.ib(type=str)
     """Archive (tar.gz) file name"""
 
     version = attr.ib(type=str)
     """Current version"""
 
     last_modified = attr.ib(type=datetime)
     """Module last update date as release date"""
 
 
 def extract_intrinsic_metadata(dir_path: Path) -> Dict[str, Any]:
     """Extract intrinsic metadata from metadata.json file at dir_path.
 
     Each Puppet module version has a metadata.json file at the root of the archive.
 
     See ``https://puppet.com/docs/puppet/7/modules_metadata.html`` for metadata specifications.
 
     Args:
         dir_path: A directory on disk where a metadata.json file must be present
 
     Returns:
         A dict mapping from json parser
     """
     meta_json_path = dir_path / "metadata.json"
     metadata: Dict[str, Any] = json.loads(meta_json_path.read_text())
     return metadata
 
 
 class PuppetLoader(PackageLoader[PuppetPackageInfo]):
     visit_type = "puppet"
 
     def __init__(
         self,
         storage: StorageInterface,
         url: str,
-        artifacts: Dict[str, Any],
+        artifacts: List[Dict[str, Any]],
         **kwargs,
     ):
 
         super().__init__(storage=storage, url=url, **kwargs)
         self.url = url
-        self.artifacts = artifacts
+        self.artifacts: Dict[str, Dict] = {
+            artifact["version"]: artifact for artifact in artifacts
+        }
 
     def get_versions(self) -> Sequence[str]:
         """Get all released versions of a Puppet module
 
         Returns:
             A sequence of versions
 
             Example::
 
                 ["0.1.1", "0.10.2"]
         """
         versions = list(self.artifacts.keys())
         versions.sort(key=parse_version)
         return versions
 
     def get_default_version(self) -> str:
         """Get the newest release version of a Puppet module
 
         Returns:
             A string representing a version
 
             Example::
 
                 "0.10.2"
         """
         return self.get_versions()[-1]
 
     def get_package_info(self, version: str) -> Iterator[Tuple[str, PuppetPackageInfo]]:
         """Get release name and package information from version
 
         Args:
             version: Package version (e.g: "0.1.0")
 
         Returns:
             Iterator of tuple (release_name, p_info)
         """
         data = self.artifacts[version]
         assert data["filename"].endswith(f"-{version}.tar.gz")
         pkgname: str = data["filename"].split(f"-{version}.tar.gz")[0]
         url: str = data["url"]
         filename: str = data["filename"]
         last_modified: datetime = iso8601.parse_date(data["last_update"])
 
         p_info = PuppetPackageInfo(
             name=pkgname,
             filename=filename,
             url=url,
             version=version,
             last_modified=last_modified,
             checksums=data["checksums"],
         )
         yield release_name(version), p_info
 
     def build_release(
         self, p_info: PuppetPackageInfo, uncompressed_path: str, directory: Sha1Git
     ) -> Optional[Release]:
         # compute extracted module directory name
         dirname = p_info.filename.split(".tar.gz")[0]
 
         # Extract intrinsic metadata from uncompressed_path/{dirname}/metadata.json
         intrinsic_metadata = extract_intrinsic_metadata(
             Path(uncompressed_path) / f"{dirname}"
         )
 
         version: str = intrinsic_metadata["version"]
         assert version == p_info.version
 
-        description = intrinsic_metadata["summary"]
         author = Person.from_fullname(intrinsic_metadata["author"].encode())
 
         message = (
             f"Synthetic release for Puppet source package {p_info.name} "
-            f"version {version}\n\n"
-            f"{description}\n"
+            f"version {version}\n"
         )
 
         return Release(
             name=version.encode(),
             author=author,
             date=TimestampWithTimezone.from_datetime(p_info.last_modified),
             message=message.encode(),
             target_type=ObjectType.DIRECTORY,
             target=directory,
             synthetic=True,
         )
diff --git a/swh/loader/package/puppet/tests/test_puppet.py b/swh/loader/package/puppet/tests/test_puppet.py
index 07cf0ac..cc78d4d 100644
--- a/swh/loader/package/puppet/tests/test_puppet.py
+++ b/swh/loader/package/puppet/tests/test_puppet.py
@@ -1,125 +1,124 @@
 # Copyright (C) 2022  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from swh.loader.package.puppet.loader import PuppetLoader
 from swh.loader.tests import assert_last_visit_matches, check_snapshot, get_stats
 from swh.model.hashutil import hash_to_bytes
 from swh.model.model import (
     ObjectType,
     Person,
     Release,
     Snapshot,
     SnapshotBranch,
     TargetType,
     TimestampWithTimezone,
 )
 
 ORIGINS = {
     "url": "https://forge.puppet.com/modules/saz/memcached",
-    "artifacts": {
-        "1.0.0": {
+    "artifacts": [
+        {
             "url": "https://forgeapi.puppet.com/v3/files/saz-memcached-1.0.0.tar.gz",  # noqa: B950
             "version": "1.0.0",
             "filename": "saz-memcached-1.0.0.tar.gz",
             "last_update": "2011-11-20T13:40:30-08:00",
             "checksums": {
                 "length": 763,
             },
         },
-        "8.1.0": {
+        {
             "url": "https://forgeapi.puppet.com/v3/files/saz-memcached-8.1.0.tar.gz",  # noqa: B950
             "version": "8.1.0",
             "filename": "saz-memcached-8.1.0.tar.gz",
             "last_update": "2022-07-11T03:34:55-07:00",
             "checksums": {
                 "md5": "5313e8fff0af08d63681daf955e7a604",
                 "sha256": "0dbb1470c64435700767e9887d0cf70203b1ae59445c401d5d200f2dabb3226e",  # noqa: B950
             },
         },
-    },
+    ],
 }
 
 
 def test_get_versions(requests_mock_datadir, swh_storage):
     loader = PuppetLoader(
         swh_storage, url=ORIGINS["url"], artifacts=ORIGINS["artifacts"]
     )
     assert loader.get_versions() == ["1.0.0", "8.1.0"]
 
 
 def test_get_default_version(requests_mock_datadir, swh_storage):
     loader = PuppetLoader(
         swh_storage, url=ORIGINS["url"], artifacts=ORIGINS["artifacts"]
     )
     assert loader.get_default_version() == "8.1.0"
 
 
 def test_puppet_loader_load_multiple_version(
     datadir, requests_mock_datadir, swh_storage
 ):
     loader = PuppetLoader(
         swh_storage, url=ORIGINS["url"], artifacts=ORIGINS["artifacts"]
     )
     load_status = loader.load()
     assert load_status["status"] == "eventful"
     assert load_status["snapshot_id"] is not None
 
-    expected_snapshot_id = "9a8e76a8a6eae5285059d9f6d5083a99317727cf"
+    expected_snapshot_id = "c3da002f1dc325be29004fa64312f71ba50b9fbc"
 
     assert expected_snapshot_id == load_status["snapshot_id"]
 
     expected_snapshot = Snapshot(
         id=hash_to_bytes(load_status["snapshot_id"]),
         branches={
             b"HEAD": SnapshotBranch(
                 target=b"releases/8.1.0",
                 target_type=TargetType.ALIAS,
             ),
             b"releases/1.0.0": SnapshotBranch(
-                target=hash_to_bytes("50eb560bb5322cd149359b9cc8debc78834bcfad"),
+                target=hash_to_bytes("83b3463dd35d44dbae4bfe917a9b127924a14bbd"),
                 target_type=TargetType.RELEASE,
             ),
             b"releases/8.1.0": SnapshotBranch(
-                target=hash_to_bytes("2f5722136d775dd48fe85fabdd274f1e2d7fcf22"),
+                target=hash_to_bytes("90592c01fe7f96f32a88bc611193b305cb77cc03"),
                 target_type=TargetType.RELEASE,
             ),
         },
     )
 
     check_snapshot(expected_snapshot, swh_storage)
 
     stats = get_stats(swh_storage)
     assert {
         "content": 1 + 1,
         "directory": 2 + 2,
         "origin": 1,
         "origin_visit": 1,
         "release": 1 + 1,
         "revision": 0,
         "skipped_content": 0,
         "snapshot": 1,
     } == stats
 
     assert swh_storage.release_get(
-        [hash_to_bytes("2f5722136d775dd48fe85fabdd274f1e2d7fcf22")]
+        [hash_to_bytes("90592c01fe7f96f32a88bc611193b305cb77cc03")]
     )[0] == Release(
         name=b"8.1.0",
-        message=b"Synthetic release for Puppet source package saz-memcached version 8.1.0\n\n"
-        b"Manage memcached via Puppet\n",
+        message=b"Synthetic release for Puppet source package saz-memcached version 8.1.0\n",
         target=hash_to_bytes("1b9a2dbc80f954e1ba4b2f1c6344d1ce4e84ab7c"),
         target_type=ObjectType.DIRECTORY,
         synthetic=True,
         author=Person(fullname=b"saz", name=b"saz", email=None),
         date=TimestampWithTimezone.from_iso8601("2022-07-11T03:34:55-07:00"),
-        id=hash_to_bytes("2f5722136d775dd48fe85fabdd274f1e2d7fcf22"),
+        id=hash_to_bytes("90592c01fe7f96f32a88bc611193b305cb77cc03"),
     )
 
     assert_last_visit_matches(
         swh_storage,
         url=ORIGINS["url"],
         status="full",
         type="puppet",
         snapshot=expected_snapshot.id,
     )
diff --git a/swh/loader/package/puppet/tests/test_tasks.py b/swh/loader/package/puppet/tests/test_tasks.py
index e3a0d5a..621e27c 100644
--- a/swh/loader/package/puppet/tests/test_tasks.py
+++ b/swh/loader/package/puppet/tests/test_tasks.py
@@ -1,50 +1,50 @@
 # Copyright (C) 2022  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 import uuid
 
 import pytest
 
 from swh.scheduler.model import ListedOrigin, Lister
 
 NAMESPACE = "swh.loader.package.puppet"
 
 
 @pytest.fixture
 def puppet_lister():
     return Lister(name="puppet", instance_name="example", id=uuid.uuid4())
 
 
 @pytest.fixture
 def puppet_listed_origin(puppet_lister):
     return ListedOrigin(
         lister_id=puppet_lister.id,
         url="some-url/api/packages/some-package",
         visit_type="aur",
         extra_loader_arguments={
-            "artifacts": {
-                "1.0.0": {
+            "artifacts": [
+                {
                     "url": "https://domain/some-package-1.0.0.tar.gz",
                     "version": "1.0.0",
                     "filename": "some-module-1.0.0.tar.gz",
                     "last_update": "2011-11-20T13:40:30-08:00",
                 },
-            }
+            ]
         },
     )
 
 
 def test_puppet_loader_task_for_listed_origin(
     loading_task_creation_for_listed_origin_test,
     puppet_lister,
     puppet_listed_origin,
 ):
 
     loading_task_creation_for_listed_origin_test(
         loader_class_name=f"{NAMESPACE}.loader.PuppetLoader",
         task_function_name=f"{NAMESPACE}.tasks.LoadPuppet",
         lister=puppet_lister,
         listed_origin=puppet_listed_origin,
     )
diff --git a/tox.ini b/tox.ini
index c82282d..4a5dec6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,77 +1,78 @@
 [tox]
 envlist=black,flake8,mypy,py3
 
 [testenv]
 extras =
   testing
 deps =
   swh.core[testing]
   swh.storage[testing]
   swh.scheduler[testing] >= 0.5.0
   pytest-cov
   dev: pdbpp
 commands =
   pytest \
   !dev: --cov={envsitepackagesdir}/swh/loader/ --cov-branch \
          {envsitepackagesdir}/swh/loader/ {posargs}
 
 [testenv:black]
 skip_install = true
 deps =
-  black==22.3.0
+  black==22.10.0
 commands =
   {envpython} -m black --check swh
 
 [testenv:flake8]
 skip_install = true
 deps =
-  flake8==4.0.1
-  flake8-bugbear==22.3.23
+  flake8==5.0.4
+  flake8-bugbear==22.9.23
+  pycodestyle==2.9.1
 commands =
   {envpython} -m flake8
 
 [testenv:mypy]
 extras =
   testing
 deps =
   mypy==0.942
 commands =
   mypy swh
 
 # build documentation outside swh-environment using the current
 # git HEAD of swh-docs, is executed on CI for each diff to prevent
 # breaking doc build
 [testenv:sphinx]
 whitelist_externals = make
 usedevelop = true
 extras =
   testing
 deps =
   # fetch and install swh-docs in develop mode
   -e git+https://forge.softwareheritage.org/source/swh-docs#egg=swh.docs
 
 setenv =
   SWH_PACKAGE_DOC_TOX_BUILD = 1
   # turn warnings into errors
   SPHINXOPTS = -W
 commands =
   make -I ../.tox/sphinx/src/swh-docs/swh/ -C docs
 
 
 # build documentation only inside swh-environment using local state
 # of swh-docs package
 [testenv:sphinx-dev]
 whitelist_externals = make
 usedevelop = true
 extras =
   testing
 deps =
   # install swh-docs in develop mode
   -e ../swh-docs
 
 setenv =
   SWH_PACKAGE_DOC_TOX_BUILD = 1
   # turn warnings into errors
   SPHINXOPTS = -W
 commands =
   make -I ../.tox/sphinx-dev/src/swh-docs/swh/ -C docs