Suggestion to replace your greatest remap ever

Was looking at your maps and saw:

-- greatest remap ever
vim.keymap.set("x", "<leader>p", [["_dP]])

I think you would get a lot value out of:
https://github.com/vim-scripts/ReplaceWithRegister

Its the plugin I use the most, and think it should be built into VIM as a default text motion.

In your case you could do something like:

vim.keymap.set('n', '<leader>p', '<Plug>ReplaceWithRegisterOperator', {})
vim.keymap.set('n', '<leader>P', 'Plug>ReplaceWithRegisterLine', {})
vim.keymap.set('x', '<leader>p', '<Plug>ReplaceWithRegisterVisual', {})

From the help file:

-- REPLACE WITH REGISTER
-- https://github.com/vim-scripts/ReplaceWithRegister
-- https://www.youtube.com/watch?v=wlR5gYd6um0#t=26m49
-- [count]["x]gr{motion} = Replace {motion} text with the contents of register x.
--                         Especially when using the unnamed register, this is
--                         quicker than "_d{motion}P or "_c{motion}<C-R>"
-- [count]["x]grr        = Replace [count] lines with the contents of register x.
--                         To replace from the cursor position to the end of the
--                         line use ["x]gr$
-- {Visual}["x]gr        = Replace the selection with the contents of register x.

Start by locating the existing "greatest remap ever" keymap in init.lua and compare it with the ReplaceWithRegister plugin and mappings shown in the issue. Done means the relevant normal, line, and visual keymaps use the proposed replace-with-register behavior, with the configuration still loading correctly.