Yeah I’ve always entered my location manually for both redshift and gammastep (like redshift but for wayland) in a config file because these programs can never seem to auto-detect my location on any of the devices I’ve tried them on. You don’t have to use your real location. Just put yourself in the correct hemisphere and continent and it’ll probably be ok. If putting a location in the same approximate location as your country in a local text file is too much of a privacy concern to you, then so is setting your system’s local time to your real timezone.