Edit: using a 25W iron whose tip wasn’t heating up properly. Had to use its sides to get the solder to melt, which affected precision.
It’s ugly af but it works
I’m a solder soldier
And I’m so sorry for that last part
Now I need to by something that holds everything in place, because what took most time was, well, that.
Good job :)
Now you can learn how to simulate this circuit in LTspice, then learn how to recreate this PCB in KiCAD and have JLCPCB make it for $2 plus shipping. Then you can make your own kits!