Add neovim config using nixvim

programs/nixvim/_plugins/lsp.nix

@@ -0,0 +1,61 @@
+{ lib, ... }:
+
+{
+  programs.nixvim = {
+    diagnostic.settings.virtual_text = true;
+
+    lsp = {
+      inlayHints.enable = true;
+      servers = {
+        bashls.enable = true;
+        html.enable = true;
+        jqls.enable = true;
+        jsonls.enable = true;
+        lua_ls = {
+          enable = true;
+          settings.settings.diagnostics.globals = [ "vim" ];
+        };
+        marksman.enable = true;
+        metals.enable = true;
+        nil_ls.enable = true;
+        nixd.enable = true;
+        pyrefly.enable = true;
+        rust_analyzer.enable = true;
+        sourcekit.enable = true;
+        ts_ls.enable = true;
+        yamlls.enable = true;
+      };
+
+      keymaps =
+        lib.mapAttrsToList
+          (
+            key: props:
+            {
+              inherit key;
+              options.silent = true;
+            }
+            // props
+          )
+          {
+            "<leader>k".action.__raw = "function() vim.diagnostic.jump({ count=-1, float=true }) end";
+            "<leader>j".action.__raw = "function() vim.diagnostic.jump({ count=1, float=true }) end";
+            gd.lspBufAction = "definition";
+            gD.lspBufAction = "references";
+            gt.lspBufAction = "type_definition";
+            gi.lspBufAction = "implementation";
+            K.lspBufAction = "hover";
+            "<F2>".lspBufAction = "rename";
+          };
+    };
+
+    plugins = {
+      lsp-format = {
+        enable = true;
+        lspServersToEnable = "all";
+      };
+
+      # Sane defaults for all servers
+      lspconfig.enable = true;
+    };
+  };
+}