Just noticed that ModMyPi's URLs redirect and, sure enough, found a report from 20 June that ThePiHut has acquired their stuff.
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That may be a shame, depending on what ThePiHut does. ModMyPi made a brilliant UPS which included all kinds of good stuff like safe shutdown on battery power out or on button press, and automatic restart once power restored; RTC, options for fan control, relay control, IR control, A-D converters, etc.
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I had been looking to see when ModMyPi updated the UPS for the Pi 4.