luatab.nvim VS vimfiles

2- If you only want a simple tabline (which, just display TABS ) with a little touch, with some icons per filetype, nothing extravagant. So then you have https://github.com/alvarosevilla95/luatab.nvim (which is my personal recommendation)

https://github.com/alvarosevilla95/luatab.nvim is a plugin for the tabline, but it's interesting because, as it says in the readme, it's "just a lua rewrite of the tabline render function". IOW, it's not a complete tabline plugin, but rather a plugin that enables you to configure your tabline easier, using lua.

I believe this plugin is for tabs only.

As /u/Miserable-Ad-7341 said, simplest is to set the package.loaded name to nil and require it again. For a slightly more built-in feel, I set up SourceCmd autocmd for lua (with the surrounding code to toggle auto-sourcing on save for vim and lua files), with this function doing the sourcing. It'll completely reload any module I'm working on, or if it detects a configuration file (in lua/mia/, for me), it'll just reload that file.

I use this for my tabline. It simply shows all of the windows open in the tab instead of just the active window, using / to show vertical splits and | to show horizontal ones. I've found it immensely helpful. Ignore the comments, I planned on expanding the tabline to have a second line showing the alternate file of each window, but never got around to it. Doesn't seem necessary.

For example, here (it's not the best, but it illustrates my point).

I use these functions mapped to to resize the windows more like tmux. It makes a lot more intuitive sense, and lets me make small adjustments using the keyboard instead of the mouse.