feat(nvim): add nixCats-backed language options

home/hosts/andromache/default.nix

@@ -31,6 +31,7 @@
   desktop.niri.enable = true;
   devenv.enable = true;
   direnv.enable = true;
+  docker.enable = true;
   gaming.enable = true;
   git = {
     enable = true;

home/hosts/astyanax/default.nix

@@ -30,6 +30,7 @@
   desktop.niri.enable = true;
   devenv.enable = true;
   direnv.enable = true;
+  docker.enable = true;
   git = {
     enable = true;
     gitea.enable = true;

home/modules/3d/modeling.nix

@@ -13,7 +13,6 @@
         blender
       ]
       ++ lib.optionals config.modules."3d".modeling.openscad.enable [
-        openscad-lsp
         openscad-unstable
       ];
   };

home/modules/go/default.nix

@@ -13,10 +13,7 @@
   config = lib.mkIf config.go.enable {
     home = {
       sessionVariables.GOPATH = "${config.xdg.dataHome}/go";
-      packages = with pkgs; [
-        go
-        gopls
-      ];
+      packages = with pkgs; [ go ];
     };
   };
 }

home/modules/nvim/config/after/plugin/conform.lua

@@ -10,6 +10,7 @@ require("conform").setup({
     cpp = { "clang-format" },
     css = { "prettierd", "prettier", stop_after_first = true },
     gdscript = { "gdformat" },
+    go = { "gofmt" },
     haskell = { "ormolu" },
     html = { "prettierd", "prettier", stop_after_first = true },
     javascript = { "eslint_d", "eslint", "prettierd", "prettier", stop_after_first = true },

home/modules/nvim/config/after/plugin/lspconfig.lua

@@ -4,31 +4,17 @@ local cmp_nvim_lsp = require("cmp_nvim_lsp")
 local capabilities = cmp_nvim_lsp.default_capabilities()
 
 local servers = {
-  bashls = {},
-  eslint = {
-    settings = {
-      --Assuming prettier/prettierd will handle formatting, we don't need to see these errors
-      rulesCustomizations = {
-        { rule = "prettier/prettier", severity = "off" },
-      },
-      format = false,
-    },
-  },
-  emmet_language_server = {},
-  gdscript = {},
+  c = { clangd = {} },
+  docker = { dockerls = {} },
+  gdscript = { gdscript = {} },
+  go = { gopls = {} },
+  haskell = { hls = { filetypes = { "haskell", "lhaskell", "cabal" } } },
+  helm = {
     helm_ls = {
       filetypes = { "helm", "yaml.helm-values" },
     },
-  hls = { filetypes = { "haskell", "lhaskell", "cabal" } },
-  html = {},
-  jsonls = {
-    settings = {
-      json = {
-        schemas = require("schemastore").json.schemas(),
-        validate = { enable = true },
-      },
-    },
   },
+  lua = {
     lua_ls = {
       on_init = function(client)
         if client.workspace_folders then
@@ -61,6 +47,8 @@ local servers = {
         Lua = {},
       },
     },
+  },
+  nix = {
     nixd = {
       settings = {
         nixd = {
@@ -85,8 +73,30 @@ local servers = {
         },
       },
     },
-  openscad_ls = {},
-  pyright = {},
+  },
+  openscad = { openscad_ls = {} },
+  python = { pyright = {} },
+  shell = { bashls = {} },
+  web = {
+    emmet_language_server = {},
+    eslint = {
+      settings = {
+        --Assuming prettier/prettierd will handle formatting, we don't need to see these errors
+        rulesCustomizations = {
+          { rule = "prettier/prettier", severity = "off" },
+        },
+        format = false,
+      },
+    },
+    html = {},
+    jsonls = {
+      settings = {
+        json = {
+          schemas = require("schemastore").json.schemas(),
+          validate = { enable = true },
+        },
+      },
+    },
     svelte = {
       plugin = {
         svelte = {
@@ -132,6 +142,8 @@ local servers = {
         },
       },
     },
+  },
+  yaml = {
     yamlls = {
       settings = {
         yaml = {
@@ -146,17 +158,25 @@ local servers = {
         },
       },
     },
+  },
 }
 
-local typescript_server = require("nixCatsUtils").getCatOrDefault("typescriptServer", "ts_ls")
-servers[typescript_server == "vtsls" and "ts_ls" or "vtsls"] = nil
+local nixCatsUtils = require("nixCatsUtils")
+local typescript_server = nixCatsUtils.getCatOrDefault("typescriptServer", "ts_ls")
+servers.web[typescript_server == "vtsls" and "ts_ls" or "vtsls"] = nil
 
-for server, config in pairs(servers) do
+local enabled = {}
+for language, language_servers in pairs(servers) do
+  if nixCatsUtils.enableForCategory("languages." .. language) then
+    for server, config in pairs(language_servers) do
       config.capabilities = capabilities
       vim.lsp.config(server, config)
+      table.insert(enabled, server)
+    end
+  end
 end
 
-vim.lsp.enable(vim.tbl_keys(servers))
+vim.lsp.enable(enabled)
 
 vim.api.nvim_create_autocmd("LspAttach", {
   callback = function(e)

home/modules/nvim/config/flake.nix

@@ -34,6 +34,7 @@
     }@inputs:
     let
       inherit (nixCats) utils;
+      inherit (nixpkgs) lib;
       luaPath = ./.;
       forEachSystem = utils.eachSystem nixpkgs.lib.platforms.all;
       extra_pkg_config = {
@@ -75,44 +76,23 @@
         }:
         let
           themes = import ./themes.nix pkgs;
+          languages = import ./languages.nix { inherit pkgs categories; };
         in
         {
           lspsAndRuntimeDeps = with pkgs; {
             general = [
               nodejs_24
-              black
-              clang
-              clang-tools
               curl # → plenary-nvim
               delta
-              emmet-language-server
-              eslint_d
               fd
               gawk
-              gdtoolkit_4
-              hadolint
-              helm-ls
               inotify-tools
-              isort
-              lua-language-server
-              nixd
-              nixfmt
               prettier
-              ormolu
               prettierd
-              rust-analyzer
-              rustfmt
-              shellcheck-minimal
-              stylelint
-              stylua
               tree-sitter
-              tailwindcss-language-server
-              (if (categories.typescriptServer or "ts_ls") == "vtsls" then vtsls else typescript-language-server)
-              vscode-langservers-extracted
-              yaml-language-server
-              yamllint
             ];
             github = [ gh ];
+            languages = lib.mapAttrs (_: language: language.packages) languages;
           };
 
           startupPlugins = {
@@ -137,9 +117,7 @@
                 # TODO: tidalcycles/vim-tidal
                 vim-glsl
                 # TODO: timtro/glslView-nvim
-                # TODO: sirtaj/vim-openscad
                 jupytext-nvim
-                vim-openscad
                 ## paq
                 eyeliner-nvim
                 fzf-lua
@@ -178,15 +156,14 @@
                 image-nvim
                 pkgs.neovimPlugins.beancount-nvim
                 codecompanion-nvim
-                helm-ls-nvim
                 kitty-scrollback-nvim
                 fidget-nvim
-                rustaceanvim
                 # pkgs.neovimPlugins.m-taskwarrior-d-nvim
                 claudecode-nvim
                 snacks-nvim
               ]
               ++ themes.${categories.colorscheme or "zenwritten"};
+            languages = lib.mapAttrs (_: language: language.plugins or [ ]) languages;
           };
 
           optionalPlugins = {
@@ -202,7 +179,7 @@
         };
 
       packageDefinitions = {
-        nvim = _: {
+        nvim = { pkgs, ... }: {
           settings = {
             suffix-path = true;
             suffix-LD = true;
@@ -214,6 +191,7 @@
             github = false;
             colorscheme = "zenwritten";
             typescriptServer = "ts_ls";
+            languages = lib.mapAttrs (_: language: language.enable) (import ./languages.nix { inherit pkgs; });
           };
         };
       };

home/modules/nvim/config/languages.nix

@@ -0,0 +1,107 @@
+{
+  pkgs,
+  categories ? { },
+}:
+
+with pkgs;
+{
+  c = {
+    enable = false;
+    packages = [
+      clang
+      clang-tools
+    ];
+  };
+  docker = {
+    enable = false;
+    packages = [
+      dockerfile-language-server
+      hadolint
+    ];
+  };
+  gdscript = {
+    enable = false;
+    packages = [ gdtoolkit_4 ];
+  };
+  go = {
+    enable = false;
+    packages = [
+      go
+      gopls
+    ];
+  };
+  haskell = {
+    enable = false;
+    packages = [
+      haskell-language-server
+      hlint
+      ormolu
+    ];
+  };
+  helm = {
+    enable = false;
+    packages = [ helm-ls ];
+    plugins = [ vimPlugins.helm-ls-nvim ];
+  };
+  lua = {
+    enable = true;
+    packages = [
+      lua-language-server
+      stylua
+    ];
+  };
+  nix = {
+    enable = true;
+    packages = [
+      nixd
+      nixfmt
+    ];
+  };
+  openscad = {
+    enable = false;
+    packages = [ openscad-lsp ];
+    plugins = [ vimPlugins.vim-openscad ];
+  };
+  python = {
+    enable = false;
+    packages = [
+      black
+      isort
+      pyright
+    ];
+  };
+  rust = {
+    enable = false;
+    packages = [
+      rust-analyzer
+      rustfmt
+    ];
+    plugins = [ vimPlugins.rustaceanvim ];
+  };
+  shell = {
+    enable = true;
+    packages = [
+      bash-language-server
+      shellcheck-minimal
+    ];
+  };
+  web = {
+    enable = false;
+    packages = [
+      emmet-language-server
+      eslint_d
+      stylelint
+      svelte-language-server
+      tailwindcss-language-server
+      (if (categories.typescriptServer or "ts_ls") == "vtsls" then vtsls else typescript-language-server)
+      vscode-langservers-extracted
+    ];
+  };
+  yaml = {
+    enable = false;
+    packages = [
+      yaml-language-server
+      yamllint
+    ];
+  };
+}

home/modules/nvim/default.nix

@@ -25,14 +25,29 @@ in
         "vtsls"
       ];
     };
+    languages = lib.mapAttrs (
+      _: language:
+      lib.mkOption {
+        default = language.enable;
+        type = lib.types.bool;
+      }
+    ) (import "${inputs.nvim}/languages.nix" { inherit pkgs; });
   };
 
   config = lib.mkIf config.nvim.enable {
+    nvim.languages = {
+      docker = lib.mkDefault config.docker.enable;
+      go = lib.mkDefault config.go.enable;
+      helm = lib.mkDefault config.k8s.helm.enable;
+      openscad = lib.mkDefault config.modules."3d".modeling.openscad.enable;
+      web = lib.mkDefault config.nodejs.enable;
+    };
+
     nvim.packageDefinitions.merge.nvim = _: {
       categories = {
         colorscheme = config.nvim.colorscheme;
         github = config.git.github.enable;
-        inherit (config.nvim) typescriptServer;
+        inherit (config.nvim) languages typescriptServer;
       };
     };