typst: add typstudio + neovim LSP config

- typstudio: standalone Typst editor with built-in live preview
- neovim: auto-loads tinymist LSP on .typ files (hover, goto-def, rename, code actions)
- keep-alive: tinymist already provides typst-lsp protocol

home/sscoble.nix

@@ -67,7 +67,7 @@
     };
   };
 
-  # === Neovim config ===
+  # === Neovim config (with LSP support) ===
   home.file.".config/nvim/init.lua".text = ''
     vim.opt.number = true
     vim.opt.relativenumber = true
@@ -89,6 +89,22 @@
     vim.opt.updatetime = 50
     vim.opt.colorcolumn = "100"
     vim.g.mapleader = " "
+
+    -- LSP: load per-filetype configs
+    vim.api.nvim_create_autocmd("FileType", {
+      pattern = "typst",
+      callback = function()
+        local ok, config = pcall(dofile, vim.fn.stdpath("config") .. "/lua/lsp/typst.lua")
+        if ok and config then
+          vim.lsp.start(config, { bufnr = 0 })
+          local buf = vim.api.nvim_get_current_buf()
+          vim.keymap.set("n", "K", vim.lsp.buf.hover, { buffer = buf })
+          vim.keymap.set("n", "gd", vim.lsp.buf.definition, { buffer = buf })
+          vim.keymap.set("n", "<leader>rn", vim.lsp.buf.rename, { buffer = buf })
+          vim.keymap.set("n", "<leader>ca", vim.lsp.buf.code_action, { buffer = buf })
+        end
+      end,
+    })
   '';
 
   # === Pi config directory ===

home/wgu.nix

@@ -18,7 +18,8 @@
 
     # Document preparation
     typst
-    tinymist  # Typst LSP for VS Code
+    typstudio  # Standalone Typst editor with live preview
+    tinymist   # LSP (tinymist binary speaks typst-lsp protocol)
     pandoc
 
     # Password manager (LastPass has no Linux native client — use Bitwarden)
@@ -33,4 +34,19 @@
     "editor.fontSize" = 14;
     "workbench.colorTheme" = "Catppuccin Mocha";
   };
+
+  # === Neovim LSP for Typst ===
+  # Tinymist binary speaks the typst-lsp protocol — plug into nvim-lspconfig
+  home.file.".config/nvim/lua/lsp/typst.lua".text = ''
+    return {
+      cmd = { "${pkgs.tinymist}/bin/tinymist" },
+      filetypes = { "typst" },
+      root_markers = { ".git", "flake.nix" },
+      single_file_support = true,
+      settings = {
+        exportPdf = "onSave",
+        outputPath = "$root/out/$name.pdf",
+      },
+    }
+  '';
 }