so I'm in a quandary, I'm in a place that gives me lots of freedom and the room and respect to implement my ideas and i get lots of praise but the pay is not very good and the technology is old, i have quite a few opportunities to move for much more money, better technology and training and guidance but then i would not get so much freedom.

I'm a mid-level full-stack c# but I'm spending more time in meetings and writing business cases/documentation than i am coding these days plus i have noone to teach me better practices or tell me off for sloppy code apart from myself.
i would like to stay in my current place - they have been very good to me and are pushing to meet my needs but i will be putting in a lot of effort by myself to push the technology forward.
i enjoy the challenges but i want to make sure my coding skills are always improving.

so I'm thinking either stay and force myself to spend time creating personal git projects / work on open source, or just leave.

also any recommendations on open source projects to get started on?