Looks useful and I like the UI, it reminds me of UniFi. After a few minutes I had to force-quit and sent a report. I will buy it, I love messing about and have a reasonably complex home network and have been getting by with a mix of Unix and homemade tools; this is nicer.
Having paid for and enjoyed Narwhal and Apollo, I really hated the official app. After some digging, I found https://github.com/lo-cafe/winston and that's working for me. It's not simple - you have to generate your own Reddit app id and secret, be able to Xcode from source and have a valid Apple ID to install the IPA, but it's worth it to me to spite the enshittified app.
I built one in Flask, with background downloads and saved state/logs in SQLite. No JS, simple CSS styling with Bootstrap. Cool to see all of these. https://github.com/phubbard/ytdl-web