I used Geany editor (well, it's called a lightweight IDE) with a Debugger plugin. There's also another debug plugin for it, forgot the name, slightly more capab

I used Geany editor (well, it's called a lightweight IDE) with a Debugger plugin. There's also another debug plugin for it, forgot the name, slightly more capable. All of these are capable of the basic single-threaded debug operations. Multithreaded is not as robust, but it's quite a cookie per se. For the basics the TUI is very much alright, as long as you remember the hotkeys.