Opening i3 from home-manager automatically

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Well that is weird. I’ve checked, and both on master and release-19.09 the display manager’s session script contains (because of the exec, if the test succeeds this will be the last command run by the script) :

  # Allow the user to setup a custom session type.
  if test -x ~/.xsession; then
      eval exec ~/.xsession "$@"
  fi

My bad ! You were right here, I set the value to "" and it worked as intended.

(now it should be clear why I set start to "" : it should never be executed, as it’s a fake session that defers to .Xsession ).

Yes I do see it now, it was early in the morning on my way to work, I missed a thing :wink:

I’m already running the setup you described, but I did not need such a helper. Just a few lines in the system config to configure the special session for xsession, and the two patches in NixOS+nixpkgs to allow overriding the session at runtime.

Yes, indeed, I ended up with this setup too.

Thank you for your help :slight_smile: