NixML: reproducible environments with nix + YAML
NIX-ML : Easy, reproducible, environments with Nix + YAML
Simple, perfectly reproducible, environments with nix specified using an YAML file.
Example, write to a file called
nixml: v0.0 snapshot: stable-19.03 packages: - lang: python version: 2 modules: - numpy - scipy - matplotlib - mahotas - jupyter - scikitlearn
and you will be dropped into an environment containing the packages listed above, as was up to date in March 2019. Conceptually, the environment will always be generated from scratch, but caching means that the first time will take significantly longer (including, it will download all dependencies). Afterwards, it should take a few seconds at most.
This environment will be like a typical conda/pip/virtualenv/... environment:
if will place the corresponding binaries at the front of the
PATH so that
they are picked with high priority, but, alternatively, you can generate a
pure environment, which will contain only the packages that you specify.
This avoids accidental use of packages that are not part of the environment:
nixml shell --pure
Finally, you can run
to just create the
nixml.nix corresponding to the enviroment.
It's a YaML file
nixml: version of nixml to use. Currently, only
v0.0 is supported.
snapshot: This is the package version to use. Currently, only
is available, but general syntax is
packages: A list of packages, which are grouped into language blocks.
python: Python language environment, specify the version (
texlive: Texlive packages
nix: Generic packages (i.e.,
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.