MIT's How to make (almost) anything is a good place to start if you are new to hardware prototyping: https://fab.cba.mit.edu/classes/863.20/ https://fab.cba.mit

MIT's How to make (almost) anything is a good place to start if you are new to hardware prototyping: https://fab.cba.mit.edu/classes/863.20/ https://fab.cba.mit.edu/classes/863.20/ I would also recommend that you join any local Hackerspaces in your area if you need access to special equipment: laser cutters, CNC machines, 3d printers. Peeps who frequent these spaces are very knowledgable and surprisingly helpful with n00bs. As others have already mentioned here, don't worry about going into production for now because A LOT of stuff is in flux due to the pandemic. Most people who are serious about building hardware either end up moving to Shenzhen or spending a huge chunk out of their year supervising the manufacturing in person. If you are not ready to make this commitment yet then it's better to focus on making your prototypes locally with what you already have on hand.