My current neovim config

lua/buildcmd.lua

@@ -0,0 +1,35 @@
+local job_id, job_buffer
+
+local function job_exit(jobId, exit_code, _)
+    job_id = nil
+    echo("Job done")
+end
+
+local function has_buffer()
+    return job_buffer and vim.fn.buflisted(job_buffer) == 1
+end
+
+function save_all_and_build()
+    if job_id then
+        echo ("Job processing")
+        return
+    end
+
+    local opts = {}
+    vim.api.nvim_exec('wa', opts)
+    
+    if not has_buffer() then 
+        job_buffer = vim.api.nvim_create_buf(true, true)
+    end
+    local job_window = vim.fn.bufwinnr(job_buffer)
+    if job_window ~= -1 then
+        vim.cmd(job_window .. ' wincmd w')
+    else
+        vim.cmd('buffer ' .. job_buffer)
+    end
+    vim.api.nvim_buf_set_option(job_buffer, 'filetype', 'build')
+    vim.api.nvim_buf_set_option(job_buffer, 'modified', false)
+    -- TODO: if I want to get fancy I can set a build string per language.
+    job_id = vim.fn.termopen("zig build", {on_exit = job_exit})
+    vim.api.nvim_buf_set_name(job_buffer, '[build]')
+end