repalce astrovim with nvchad

pkgs/nvchad/custom/configs/null-ls.lua

@@ -0,0 +1,33 @@
+local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
+local null_ls = require "null-ls"
+
+local b = null_ls.builtins
+
+local opts = {
+  sources = {
+    b.formatting.prettierd,
+    b.formatting.stylua,
+
+    -- nix
+    b.code_actions.statix,
+    b.formatting.alejandra,
+    b.diagnostics.deadnix,
+  },
+  on_attach = function(client, bufnr)
+    if client.supports_method "textDocument/formatting" then
+      vim.api.nvim_clear_autocmds {
+        group = augroup,
+        buffer = bufnr,
+      }
+      vim.api.nvim_create_autocmd("BufWritePre", {
+        group = augroup,
+        buffer = bufnr,
+        callback = function()
+          vim.lsp.buf.format { bufnr = bufnr }
+        end,
+      })
+    end
+  end,
+}
+
+return opts