But it's just a side-project and I will continue late night coding with a glass of wine. I find it hugely enjoyable.
I would have a different mind-set if I was writing software for power stations as a professional.
Normally, this would be fine. But, it appears the site has paying members. Presumably, it's not "just a side-project" to them. You owe them better than tinkering with prod while tipsy.
The bigger issue is the lack of guardrails to protect against accidental damage. This is also a common trait for hobby projects (after all, it's more fun to hack stuff together) but hopefully the maintainer will use this experience as a sobering reminder (pun intended) to put some guardrails in place now.