The standard for wallets is BIPS44, also written BIP44 and bip-r44, which builds on, and presupposes you have read, earlier bip standards.
It is intended to support multicurrecy wallets, but you still have to construct a wallet for your particular currency, which the multicurrency wallet will use.
It seems like a lot of work to implement, but that is only because you have not yet done all the work of inventing your own idiosyncratic and non standard wallet, and not yet encountered all the surprise problems, and gone down all the wrong paths.
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