emacs-sidecar-locals VS direnv

Realize this isn't addressing the hl-todo question, I'm the author of hl-prog-extra which lets you define your own regex on comments/code/strings/doc-strings etc, I use it with sidecar-locals for per-project highlighting (highlighting bug ticket's spesific to the bug tracker for example). You might find it handy.

I also wanted to avoid having to add files into my projects repositories, however I also didn't especially want to have to configure my projects in my init.el file either, so I wrote sidecar-locals which allows something similar to dir-locals that can be located above the projects in a sub-directory.

I've written a small package that addresses the issues I had with dir-locals, I'm using it now and so far it's working well.

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.