A NUR "Nix User Repository"
You can see the repository under the nur.nix-community.org.
For local development, when you add a package:
$ nix-build -A <package-name>
Garbage collect:
$ nix-collect-garbage
Update flake.nix
$ nix flake update
# or
$ nix flake lock --update-input nixpkgs
Add rseops from cachix
$ nix-env -iA cachix -f https://cachix.org/api/v1/install
$ cachix use rseops
If you outside the devcontainer and need to install nix:
sh <(curl -L https://nixos.org/nix/install) --no-daemon
. $HOME/.nix-profile/etc/profile.d/nix.sh