push built grammars to cachix

.github/workflows/main.yaml

@@ -9,6 +9,12 @@ jobs:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
       - uses: DeterminateSystems/flakehub-cache-action@main
+      - uses: cachix/cachix-action@master
+        if: github.ref == 'refs/heads/master'
+        with:
+          name: nvim-treesitter-main
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+
       - run: nix flake check
       - run: nix run nixpkgs#nixfmt **/*.nix
 

README.md

@@ -69,6 +69,24 @@ overlays = [
 
 If you need the unpatched `nvim-treesitter` plugin without any parsers/queries bundled, even after you overlay it, you can use the `nvim-treesitter-unwrapped` output of this overlay.
 
+## Cache
+
+Add our `cachix` repo to avoid needing to build grammars locally.
+
+```nix
+  nix = {
+    settings = {
+      substituters = [
+        "https://nvim-treesitter-main.cachix.org"
+      ];
+      trusted-public-keys = [
+        "nvim-treesitter-main.cachix.org-1:cbwE6blfW5+BkXXyeAXoVSu1gliqPLHo2m98E4hWfZQ="
+      ];
+    };
+  };
+```
+
+
 ## Updating
 
 To update the list of parsers in `generated.nix`: