Sounds tempting, but every time I try something like this, the momentum runs out after a few months to a year, and I'm left with a decaying side-project consumi

Sounds tempting, but every time I try something like this, the momentum runs out after a few months to a year, and I'm left with a decaying side-project consuming more of my time and energy. Is there a reasonably priced alternative to Google Photos that comes with fault tolerance, privacy, and a functional, cross-platform interface?