I love Grav so much (thanks Grav Team) that I am running it across few of my websites:
https://focusasia.xyz/
https://hustlerbundle.com/ (soon to be ready, right now just “hello world”)
The issue I have is managing the custom theme I am developing across all these sites.
Right now it’s a pain in the ass because when I introduce a change to one site (CSS styling, HTML etc.), I need to manually add these to the other (on top of that, remembering what changes were made where is terrible, even if you manage through GIT). Of course, landing/root page will look different for each for obvious reasons.
Additionally: Will it be possible to develop/maintain a theme that will keep same structure but will be a bit different in details? For example, on one website I would like to keep a sidebar for blog section but for the other no sidebar.