It has been years since I was involved with this company, but at the time I worked there, Mylio was very much concerned with this problem, and a brief look at the FAQ suggests that the goals have not changed: https://mylio.com/. - Source: Hacker News / 8 months ago

This is an issue for YEARS in icloud. Apples cloud is a mess since me.com... I also had a huge (about 2.5TB) photos library. I switched to mylio.com - in general its a great alternative. Source: 11 months ago

Does it have to be OSS and free? Otherwise Mylio might be the way. Source: over 1 year ago

I use mylio https://mylio.com/ and have been very happy with its cross device and platform sync and backup in conjunction with my QNAP NAS. Source: over 1 year ago

Now, if you also have a PC and want to keep , say, 20 thousand DLSR or Mirrorless camera photos along with smartphone photos, a tool called Mylio syncs photos peer-to-peer (no cloud) across devices. It has some decent editing functionality (tagging, rating, keywords, albums) if that matters. https://mylio.com. Source: over 1 year ago

There are a lot of music players for the Mac, here are a few of them: https://swinsian.com/ https://colibri-lossless.com/ https://cog.losno.co/ https://vox.rocks/. - Source: Hacker News / over 1 year ago

Try Colibri. Should have everything you need! Source: about 3 years ago