Able to run program from shell, systemd unit fails

[samueldr]

@jaquer

Jul 16 18:31:31 cloud elixir[21905]: (elixir) lib/system.ex:622: System.cmd("git", ["rev-parse", "HEAD"], [])

Going from that line, I will hazard a guess: git is needed for this service, and you have git available in your systemPackages.

systemd services have quite a strict relation with PATH^[1] (and most environment variables). You will need to add the required dependencies to the .path option for your service.