ast-grep all the things

ast-grep-sgconfig-many.nix

            files."sgconfig.yml".yaml = {
              customLanguages =
                pkgs.vimPlugins.nvim-treesitter.grammarPlugins
                |> builtins.mapAttrs (
                  n: d: {
                    extensions = [ n ]; # XXX: broken for many languages, works for nix at least... 
                    libraryPath = d.outPath + "/parser/${n}.so";
                    languageSymbol = "_tree_sitter_${n}";
                  }
                );
            };