You just have to search on Le Bon Coin for « mini-pc » to find lots of cheap mini machines on which you can install a Linux like Ubuntu Desktop or MX Linux 23 and then Gladys
example here
https://www.leboncoin.fr/ordinateurs/2461846550.htm
you can even install OpenMediaVault 6 (very lightweight) on it to have a NAS, DLNA and then Gladys on it in Docker managed by OMV6 or as a parallel installation
In both cases you’ll have a dedicated system that requires little intervention!
@pierre-gilles, you must be with Reef because at Free everyone knows it’s Linux! 