How do I run extra custom initialization after direnv? (ZSH)

[Hubro]

I'm using direnv with ZSH and I want to add some extra shell-specific initialization to my projects.

My first attempt was to add this to my .zshrc:

# Optional extra init for projects using direnv
if [[ -n "$HUBRO_EXTRA_INIT" ]]; then
  eval "$HUBRO_EXTRA_INIT"
  unset HUBRO_EXTRA_INIT
fi

But since direnv only runs after the shell has initialized, this will never run.

I need to be able to run my own ZSH function any time direnv has finished loading an environment.

How can I do that in ZSH? Are there any official hooks I can use? (I assume no, since I've Googled with no success and had 3 different hallucinations suggested by ChatGPT.)

If not, are there any workarounds / hacks you can suggest?

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My main motivation is to be able to source completions for project-specific CLIs, for example eval "$(dev completions zsh)" and set up simple aliases like alias dev="python3 -m my_project.cli"