Install

• RVM
• ruby
• Create a gemset that reflects .ruby-gemset (and 'rvm use 3.0.0@rails6131 –default ?)
• install rails into that gemset
• gem update bundle

rpi_gpio v0.5.0 won't install through bundle (April 2021). Here's why. Locking to v0.4.0 seems to work at the moment (in Gemfile).

The daemon uses systemd. This means that porridged.system needs to be linked from /etc/systemd/system/porridged.service.

To enable the daemon from boot, systemctl enable porridged as root. For this to work, the .service needs an [Install] section that includes a “target” – a point in the boot process at which it should be loaded. systemctl get-default tells you the default, systemctl list-units –type=targets lists all of the options. More.