Welcome!
In a way, synths are easier to build than pedals. You don’t have to fit everything into a tiny metal box and grounding/shielding is a lot less important.
If you want to use your pedals with your synth you could build a pedal adapter like the AI-006(designed for Eurorack but the voltages are the same so you can solder wires from the pads on the jack and pot footprints to panel mounted hardware.)
Good luck, you’ll fit right in here.
Edit:
I have some spare boards at home you can have for cost+shipping. The BST Thread (Buy, Sell, Trade) - #157 by Sonosus
I’m away right now but I can ship them when I’m back next week if you’re interested.