I would make use of a VPS to serve a directory with the files using Nginx. The VPS is ~$5 /month. You can share the ip or buy a domain name for ~$10/year. If you are not opposed to vibe-coding, you can probably generate the Nginx + HTML config to play through the songs without having to click them individually with little effort.
Wait what, how do you know my code?
Also: I use the timer very often, and I find setting a timer on a phone to be more awkward.
Sport watches.
Combination of two tings: I used to think that wearing a watch was irrelevant because I could always see the time in my phone. And I did not want to have an app knowing how many steps I take.
What changed a few years ago: I stopped having a phone on me most of the time, so a watch became extremely handy for knowing what time it is, and I found out that Garmin watches work perfectly well without an app. So, now, I really like my watch. I am considering getting a fancier one with solar charging, and I even got a chest strap to improve measurement accuracy while running.
Is your friend alright?