I would too, but after like a week I get bored of maintaining it myself when all the expenses summed together aren't much cheaper than Proton or likewise. This is what I was doing before submitting my independence to Proton.

Furthermore Nextcloud is just too damn sluggish. The web interface makes it seem like my server's idea of a CPU is a kid with a calculator and WebDAV isn't designed for cloud storage. I'll take new features being slow over my whole experience being even slower any day of the week.