Get a Haskell development environment up and running quickly. Thanks to Nix, this template is optimized for a fully reproducible and friendly development environment. It is based on:
- Nix + Flakes (via
github:srid/haskell-flake) + GHC 9.6 - VSCode + HLS
- fourmolu autoformatting
- Relude as Prelude.
.hlint.yamlis from relude
- Devshell commands are provided via just; run
justin devshell.
If you have an existing Haskell project, you should probably use https://github.com/srid/haskell-flake instead.
Initialize this template using:
nix run nixpkgs#omnix -- \
init github:srid/haskell-template -o ./yourprojecttldr: Install Nix, setup direnv, open in VSCode, install recommended extensions and run just run.
Full instructions: https://srid.ca/haskell-template/start
Recommended dev environment setup: https://nixos.asia/en/direnv
- Run
nix flake updateto update all flake inputs. - Run
nix run nixpkgs#omnix cito build all outputs. - pre-commit hooks will automatically be setup in Nix shell. You can also run
pre-commit run -amanually to run the hooks (e.g.: to autoformat the project tree using fourmolu, nixpkgs-fmt, etc. as well run programs like hlint). The hooks will checked as part of flake checks (thus CI). - Run
just docsto start Hoogle with packages in your cabal file. - Run the application without installing:
nix run github:srid/haskell-template(ornix run .from checkout) - Common workflows
Questions? Ideas? Suggestions? Join our NixOS Asia community or post in Github Discussions.