Maybe makes sense for events example (Join the BTC Prague mint, because it has a bunch of conference themed apps a chat group and private offline transactions) not a necessity but a cool touch. Outside of that, If you're running your own lightning node you'll hardly need to touch Fedi or e-cash for the foreseeable future.

.....Same goes for liquid. If you can run your own node and easily manage liquidity, you don't need to overcomplicate things with additional tokens or procedures....in my opinion.