Improving Neovim load time on WSL 2

llllvvuu — Wed, 01 Nov 2023 06:24:35 +0000

Recently I decided to duplicate my Neovim setup from MacOS to WSL. On MacOS, I never had any load time issues, but to my shock, on WSL it took 2 seconds to start Neovim and another 2 seconds to lazy load more plugins when opening a file!

The root cause of this is the slow filesystem calls between WSL and the host Windows which affects the search for executables. This can be addressed in 3 areas:

Bypass clipboard.vim search for executables.
Don't add Windows $PATH to WSL $PATH
Deduplicate $PATH (add this to the end of .bashrc/.zshrc)

A nice side effect of these steps is that bash/zsh becomes much faster as well (especially with autocompletion/autosuggest).

Many popular frontends are low-key open-source

llllvvuu — Mon, 04 Sep 2023 13:36:43 +0000

Ever wondered how your favorite frontend is built (for example, maybe it has an awesome component that you can't find replicated anywhere)? It might have:

No GitHub
No GitLab
No source maps in Chrome DevTools.

But you may still be able to find the original sources.

I made a tool to extract them: https://github.com/llllvvuu/dl-webapp-sources

To summarize from the README:

You can get a list of all JS files loaded by a page using:

performance
  .getEntriesByType("resource")
  .map(resource => resource.name)
  .filter(name => name.endsWith(".js"))
  .map(name => `"${name}"`)
  .join(" ")

You can pass this into the CLI:

dl-webapp-sources ${JS_URLS} -o ${OUTPUT_DIRECTORY}

Often this will give you a full React app. It will be missing the build files like package.json, webpack.config.js, and tsconfig.json, but you may be able to reverse engineer these - look for strings like react-router, next, etc and then plug in the appropriate build system and tweak the config.

Try it on your favorite apps... you might be surprised! There are some interesting codebases to study and learn from.

DEV Community: llllvvuu

Improving Neovim load time on WSL 2

Many popular frontends are low-key open-source