nixpkgs-replit

nixpkgs-replit is Replit's nixpkgs overlay. This overlay provides several channels that track the upstream nix channels of the same name.

Using the overlay

You can use this overlay by creating any new repl on Replit. If you would like to use it locally, you can add it as a channel.

nix-channel --add https://storage.googleapis.com/replit-nixpkgs/nixpkgs-21.11.tar.gz  replit-nixpkgs
nix-channel --update
nix-shell -E "import <nixpkgs-stable-21_11>{}" -A replitPackages.replbox

Building the overlay

You can build packages out of the overlay with the nix-build command. The resulting package will be placed in the result directory for testing.

# Build the replbox common interpreter frontend
nix-build -A replitPackages.replbox

You can also fork this repl, which contains the overlay repository, and allows testing packages from the overlay directly in replit.nix.

Building the overlay for a particular channel

You can build a package for a particular channel like this:

nix-build --argstr channelName nixpkgs-22.11 -A nodePackages.typescript-language-server

Updating the overlay base

You can update the pinned base channels by running ./update.sh. The update script will use niv to update the pinned channels to the latest revisions according to nixpkgs.

Adding a new base channel

You can add additional channels by running ./add.sh <channel>. For example ./add.sh 22.05 to add the release-22.05 branch.