EverSolo has a phone screen, and runs regular phone apps. They didn’t even need to write anything too special. If you are happy with EverSolo’s screen size, just use Tidal’s phone software on it, Connect and everything. Not like anyone could hear any difference anyway.
If you want to use Rose, with its rather uncommon screen ratio and custom app infrastructure, then you have to wait for Connect support to be developed, including jumping through whatever hoops Tidal wants them to jump through.
Should there be Tidal Connect support? Probably, seems to be something enough people want, especially when they have no ethical objections to supporting highly unpleasant personalities behind the service. Is it so easy to do that it should just appear when you snap your fingers? No.

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but there are some utilities one could use to keep it awake.

