vim9jit VS impatient.nvim

That's not happening any time soon, but there's this project by one of Neovim's contributers that transpiles Vim9 script into Lua.

Probably feasible with https://github.com/tjdevries/vim9jit actually

There's https://github.com/tjdevries/vim9jit. It has reportedly been used to port Vim9script runtime files to Neovim.

Neovim is going to use a transpiler that covers vim9script code to lua code using the nvim api in the future (https://github.com/tjdevries/vim9jit)

I didn’t watch the streams because I wasn’t totally sure what he was even doing, but maybe this will take some of it off your hands: https://github.com/tjdevries/vim9jit

It could (rightly) be argued that neovim could just merge in vim9script, but I think this probably isn't the best more. I'm personally more in favor of getting a vim9 cross-compiler working, that way there's an easy way to support both. But that's my ignorant two cents on the matter.

A core contributor to Neovim is toying with a Vim9Script to Lua convertor.

That's not necessarily true.

Core maintainer of the Neovim Tjdevries is working on a compatibility layer that would allow vim9 to not only run in Neovim, but likely faster.

Source: https://github.com/tjdevries/vim9jit

My understanding was the neovim folks decided this wasn't work the hassle. TJ already has https://github.com/tjdevries/vim9jit, which transpiles vim9scripts to lua, and that is much more likely the way things will go.

You could use impatient.nvim or the new vim.loader module if you’re on nightly. Both work really well. I used impatient for a long time and it reduced my startup time by half. I’m using vim.loader now and it reduces it by about the same amount

The 20-30 ms promise depends on your hardware. In my case, vanilla Neovim takes about 18 ms to startup, so a realistic good startup time for my config is around 50-60 ms. Lines of code isn’t a great reference either because you could just lazy load a bunch of plugins and have more LoC but still better startup times. What I would recommend is using lazy.nvim or if you wanna stick with packer, then pairing it with impatient.nvim .

automatically caches all startup code before :h VimEnter or :h BufReadPre (basically what impatient.nvim does)

there is an amazing plugin called impatient.nvim that cache a lot of stuff and make other pluggins go so fast !

Try installing https://github.com/lewis6991/impatient.nvim first.

:lua vim.pretty_print(vim.mpack.decode(vim.mpack.encode({some = { thing = false }}))) used by impatient.nvim

Did you defined your [[ and ]] mappings in that file or just created it? the after directory runs at the end of your config so you can override this kind of settings. Maybe you are using impatient.nvim? From their README:

Are you using impatient.nvim? It caches lua modules. My startuptime with 72 plugins (including it) and zero lazy loading is 600ms.