Install module that is in master branch but not yet in nixos-20.09-small

Help
1

Hello everybody,

I’m trying to configure pleroma social network instance on my server and I was looking forward, when it will be merged into nixpkgs/nixos repo. The problem is that package and module are present in master branch but not in nixos-20.09-small.

Please advice, how can I use module that is in master branch.

2

If there aren’t many modules added, you can download them yourself and add them to imports in your configuration.