jenv VS prezto

https://github.com/jenv/jenv to switch among multiple Java versions

I would recommend https://www.jenv.be/

Look at the https://www.jenv.be/ configure section and add the Java location where Homebrew installed your java. If I remember correctly, it should be somewhere in /usr/local/Cellar/openjdk/**

On my case I prefer use jenv (which is available on aur)

You might like jenv

There are a handful of different ways to temporarily swap out Java versions. In this case, you could probably edit the start scripts to point directly to the path for the Java version you want to use (instead of just "java" which is most likely referring to the most recent). I was already using jEnv for other things, so I configured it so JRE 1.6 would be used in my Nullpomino directory, and the latest JRE would be used everywhere else.

I like jenv for that. You can have a java version set per-project, systemwide, shell session, etc.

I don’t know if this is the “correct” way, but if you are Unix based I would recommend jenv. This is a Java environment manager, similar to pyenv if you know it. Using this tool you can easily switch from one installed version to another. It makes managing Java versions a bliss.

Beyond zprof (https://www.bigbinary.com/blog/zsh-profiling) not really I'm afraid. I did the majority of my zsh-prompt hacking 10 years ago and haven't thought about it since. That snippet could be from anywhere.

You could peek at something like zprezto https://github.com/sorin-ionescu/prezto or pure https://github.com/sindresorhus/pure for tips.

Fetching git/hg/... info is always slow, so try and speed that up where you can (as to how to do that, uhh... I know my prompt has a dirty-state check nicked from pure for speed reasons). You can also cache any `asdf init zsh` or similar to a file and do the same "run in background" trick so the next shell will have any changes.

The biggest improvement I can remember was dropping zprezto for my own much smaller config, I really did not need much comparatively. Mostly some git info and "good default" options. I use zgenom for a plugin manager but only have 3 plugins, probably I should just dump it and inline the plugins to avoid getting owned one day.

Is the command line really so scary? I enjoy using it from time-to-time (usually not for gaming related reasons) and I like things like Prezto to make it look pretty.

I switched from Oh My Zsh to Prezto years ago. OMZ at the time was excruciatingly slow, but that may have changed. Maybe I should take another look at it, but Prezto has been great.

I installed iTerm2 and zsh shell with Prezto and I love my command line on OSX I use homebrew to install any tools that are missing and use pyenv to manage my python version (which I also do on Linux) that and the clang/gcc from the OSX command line tools and I pretty much have a full Un*x shell for anything I need to do

Moreover, there are tools were made on top of those to provide more functionalities, and fill some of the gaps, for instance, oh-my-zsh, Prezto, oh-my-fish, and much more. However, the default embedded terminal in macOS is still lacking something. That's why iTerm and other terminal like Hyper. It provides you a set of customization to boost your productivity.

See terminal below. On the left side is my prompt, and on the right side is information I presume came from the git module in prezto.

I recently heard about prezto which is a fork of ohmyzsh but haven't tried it yet (most of the plugins I use are in ohmyzsh) it is more customizable and less bloated than ohmyzsh.

If you want to try a different preconfigured shell environment, big names are Prezto and zsh4humans. Prezto, like OMZ, comes with a plugin manager built in; zsh4humans does not.