Kind bookmarks
I very much recommend learning how to use a more well-structured scripting language than Bash, as languages such as Ruby have a great standard library, a huge ecosystem of other libraries, and are commonly installed across machines - this is a great look at partially replacing shell scripts with Ruby
I'm always interested to hear how other folks approach their (IndieWeb) architecture - this is a good read!
Feedback giving and receiving is really important, and I've found it can make someone's day to give them some feedback that helps appreciate the things they've done.
Something I've tried - and regularly failed - on doing is providing microfeedback (regular small pieces of feedback as and when folks do things)
However, Julia's point about asking first is something I've not considered before, so I'm definitely going to keep that in mind.