I do. Actually DIY has taken off in the last few years in the area of homemade guitar pedals and synthesizers. A lot more musicians building their own stuff than I recall in the 70s / 80s. It is a niche area and not enough to sustain Radio Shack type stores which is a shame. Not end of the world since one can buy whatever is needed online.
I remember back in the 1970s, my Dad spent a few years building a HeathKit Color TV.
My son-in-law has his own home business building guitar pedals and synthesizers. Sells items around the world. His parents instilled the attitude in their kids to work for themselves and not others, and his siblings are also doing well inventing their own stuff. Prototypes his creations at TechShop, then has other shops do large quantities of his designs.