got lsps up and running.

nix/nvim/lsp/lsp.nix

@@ -4,8 +4,191 @@
   ...
 }: {
   programs.nixvim = {
+    plugins.lsp={
+      enable=true;
+      servers={
+        bashls.enable=true;
+        clangd.enable=true;
+        lua-ls.enable=true;
+        nil_ls.enable=true;
+        nushell.enable=true;
+        pyright.enable=true;
+        ruff-lsp.enable=true;
+        rust-analyzer={
+          enable=true;
+          installCargo=true;
+          installRustc=true;
+        };
+        texlab.enable=true;
+        typst-lsp.enable=true;
+        taplo.enable=true;
+        yamlls.enable=true;
+        marksman.enable=true;
+        jsonls.enable=true;
+        hls.enable=true;
+      };
+    };
+    plugins.cmp.settings.sources=[
+      {name="nvim_lsp";}
+    ];
+    plugins.which-key.registrations = {
+      "<leader>l" = "+lsp";
+    };
+    keymaps = [
+      {
+        action = "vim.lsp.buf.declaration";
+        key = "<leader>lc";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "declaration";
+        };
+      }
+      {
+        action = "vim.lsp.buf.definition";
+        key = "<leader>ld";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "definition";
+        };
+      }
+      {
+        action = "vim.lsp.buf.hover";
+        key = "<leader>lh";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "hover";
+        };
+      }
+      {
+        action = "vim.lsp.buf.implementation";
+        key = "<leader>li";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "implementation";
+        };
+      }
+      {
+        action = "vim.lsp.buf.signature_help";
+        key = "<leader>ls";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "signature_help";
+        };
+      }
+      {
+        action = "vim.lsp.buf.add_workspace_folder";
+        key = "<leader>lwa";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "add folder";
+        };
+      }
+      {
+        action = "vim.lsp.buf.remove_workspace_folder";
+        key = "<leader>lwr";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "remove folder";
+        };
+      }
+      {
+        action = "vim.lsp.buf.list_workspace_folders";
+        key = "<leader>lw";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "workspace";
+        };
+      }
+      {
+        action = "vim.lsp.buf.rename";
+        key = "<leader>lr";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "rename";
+        };
+      }
+      {
+        action = "vim.lsp.buf.code_action";
+        key = "<leader>la";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "code action";
+        };
+      }
+      {
+        action = "vim.lsp.buf.references";
+        key = "<leader>le";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "list references";
+        };
+      }
+      {
+        action = "function() vim.lsp.buf.format{async=true} end";
+        key = "<leader>lm";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "format buffer";
+        };
+      }
+      {
+        action = "vim.diagnostic.open_float";
+        key = "<leader>lo";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "open float";
+        };
+      }
+      {
+        action = "vim.diagnostic.goto_next";
+        key = "]d";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "next diagnostic";
+        };
+      }
+      {
+        action = "vim.diagnostic.goto_prev";
+        key = "[d";
+        lua = true;
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "prev diagnostic";
+        };
+      }
+    ];
   };
   imports = [
-    # ./outline.nix
+    ./outline.nix
+    ./rust-tools.nix
   ];
 }

nix/nvim/lsp/rust-tools.nix

@@ -0,0 +1,11 @@
+{
+  configs,
+  pkgs,
+  ...
+}: {
+  programs.nixvim = {
+    plugins.rust-tools = {
+      enable = true;
+    };
+  };
+}