Writing Wandbox-vim for nvim in lua to learn neovim and lua.

An interface for compiling local programs using any compiler and options from the Wandbox api.

• Provide an ex command interface as WandboxRun
• accept options as ex command args.
• completion for WandboxRun ex command args.
• Write help docs.
• showing output in another window rather than quickfix.
• Formatting compilers/programs errors/message to be more readable.