exec-path-from-shell VS direnv

I'm not a Mac user, but FWIW from what I've seen over time https://github.com/purcell/exec-path-from-shell is a must when using Emacs on a Mac. I don't know why this is, but I'm guessing there's something unusually difficult about setting up the desktop session environment when using OSX, and users end up needing to resort to this. Hopefully that helps if you run into environment issues.

Check out the package exec-path-from-shell

This package may help: https://github.com/purcell/exec-path-from-shell

All my path related problems with emacs were solved with the package: https://github.com/purcell/exec-path-from-shell

For one, do you use the exec-path-from-shell package? That should do the trick for path issues when using Emacs vterm. It's likely when emacs is loading it's not correctly loading in the $PATH values from your system. You can check the path values in emacs by checking the value of exec-path.

I would like to use SPC p p RET to switch projects, change working directories to trigger exec-path-from-shell, and open Treemacs with the only active project being the selected one.

I suspect the Emacs.app package has some misconfigured paths that are unable to find my libgccjit library, which I've installed via homebrew. I've tried experimenting with exec-path-from-shell to ensure Emacs is aware of my shell paths, but to no avail.

I think direnv already does a good job in this space, and it's already available in your package manager.

https://direnv.net/

I switched from asdf to mise after a comment on lobste.rs[1] suggested I do so a few months ago, and I have been very happy with it.

It sands off some of asdf's sharp UI edges and provides a somewhat larger but still reasonable feature set; I've also replaced most of my direnv[2] usage with it.

The mise -> asdf comparison page is useful[3]

1: https://lobste.rs/s/66uxbj/how_love_homebrew#c_mvmsjp

2: https://direnv.net/

3: https://mise.jdx.dev/dev-tools/comparison-to-asdf.html

I also made the export diff configurable, motivated by this post: https://github.com/direnv/direnv/pull/1233

Nice.

For years I've been using [direnv](https://direnv.net/) for this, setting environment variables which git picks up. This looks like a more feature complete equivalent, although to be honest I only really need switching of committer email and the SSH key used.

Direnv, for the uninitiated, loads and unloads environment variables when directories are entered and exited. Under every project folder there is a `$PROJ_DIR/.envrc` which contains:

buffer-env: A pure-Elisp version of the direnv utility. Useful to make Emacs aware of Python virtualenvs (which, judging by the questions posted here, is unfortunately still a complication for a lot of people). Similar to (and inspired by) envrc, but doesn't require the direnv program.

You can look at direnv to see this in action as they wrote shell hooks that get loaded into the shell profile and are executed on every prompt. https://direnv.net/

Yes, most Nix users employ https://direnv.net or the equivalent for your IDE of choice. Emacs for instance has https://github.com/purcell/envrc which set per-buffer variables.