It's pretty simple to install any of the extensions. You simply cd into the folder, and run
pnpm install && pnpm dev. Then the extension should be installed, and you may Ctrl-c out of development mode.
This is a simple http client, it supports the most common HTTP endpoint, as well as a custom one for GraphQL, which is
actually just implemented as a POST. With rhttp you may organize requests in collections. You can import and export
collections, which is easy since it's just stored as json.
This is where you would store some useful commands, may it be clever oneliners for bash or powershell, or some cool
vim commands. It comes with some default commands that I've used from time to time, but you may also just discard them
and build up your own little database of commands.
This is a collection of small tools that doesn't really need its own extension.