Usage: jenkinsPlugins2nix [-r|--dependency-resolution [as-given|latest]]
                          (-p|--plugin PLUGIN_NAME{:PLUGIN_VERSION})
  Generate nix expressions for requested Jenkins plugins.
Available options:
  -r,--dependency-resolution [as-given|latest]
                           Dependency resolution (default: latest)
  -p,--plugin PLUGIN_NAME{:PLUGIN_VERSION}
                           Plugins we should generate nix for. Latest version is
                           used if not specified.
  -h,--help                Show this help text
Along with recent nixpkgs, you can then do the following.
jenkinsPlugins2nix -p github-api > plugins.nix
and in your configuration.nix:
services.jenkins.plugins = import plugins.nix { inherit (pkgs) fetchurl stdenv; };
Care is taken to preserve versions of plugins explicitly specified by
the user, even with the as-given resolution strategy. For example,
if plugin A has a dependency B:0.2 in its manifest file and we
specify:
jenkinsPlugins2nix -r latest -p A:0.7 -p B:0.1
We will end up with A:0.7 and B:0.1. This also applies when no
explicit version is provided which is equivalent to asking for the
latest one.
In case we only ask for A, the version of B will depend on
--resolution-strategy.