How to practice soldering modchips
Hi, I'm trying to get into soldering with the intent of learning how to solder modchips because that service just isn't available where I live and I'd like to do it for my friends and maybe later expand to selling it as a service. But is there any way to practice besides doing it on straight switches? I'm planning to buy some soldering practice kits off AliExpress (probably some of [those](https://a.aliexpress.com/\_EvqECJC) and some kit about a makeshift car with various components) but I'm not sure it prepares properly to the switch modchip install, are there other things that could help me practice the specific skills I'd need? Maybe a custom PCB I could practice connecting the flex cables to? Or is my only option buying cheap switches and practicing on those? I'd be pretty bummed if I kill them and end up unable to resell them tho so I'd rather not.
Additionally is there anywhere I could find PCBs of the same thickness / amount of layers to maybe practice the kamikaze method? My friends don't own oleds but if I'm learning how to do this I feel like I might as well learn for all of them. I'm down for settings to custom make them on platforms like PCBway or something if that lets me get something similar too.