auto commit on build

hosts/crayon/git.nix
overlays/ttpre.nix

overlays/ttpre.nix

@@ -0,0 +1,29 @@
+{ unstable }:
+final: prev: {
+  ttpre = prev.stdenv.mkDerivation {
+    pname = "ttpre";
+    version = "1.0";
+
+    src = prev.fetchurl {
+      url = "https://git.causal.agency/src/plain/bin/ttpre.c?id=7d87749a623ef4f1274903f91ebaf90dcd1cc9b5";
+      name = "ttpre.c";
+      sha256 = "sha256-K0S12UBBvEdNHOF+O63gw0PCtYkxxWesxnpRg9iSDmk=";
+    };
+    nativeBuildInputs = [ prev.gcc ];
+    unpackPhase = ":"; # we don't need to unpack it's just a c file
+    buildPhase = "gcc -o ttpre $src";
+    installPhase = ''
+      mkdir -p $out/bin
+      mv ttpre $out/bin
+      '';
+
+
+    meta = {
+      description = "Wrap a file in <pre> tags";
+      license = "AGPLv3";
+      homepage = "https://git.causal.agency/src/";
+      mainProgram = "ttpre";
+      maintainers = [ "squibid" ];
+    };
+  };
+}