I mean you could play around but be aware of this possibility that your funds in LN could get stuck.

If you want to play with a LDK node that works, you could do it with Bluewallet. I test it and is pretty good, all smooth, I even did a restore test and all good.

To create a LDK wallet, tap 10 times on the "Lightning" button in the modal of creating new wallet. After 10 taps you will see appearing the LDK option, otheriwse is hidden. Is hidden because is still in beta too. So yeah, use it only for testing, playing around. You will have to fund it from any other onchain wallet you have in your Bluewallet. If you don't have, you can import one from your existing wallets and use it as a funding source for opening a channel. Once you open the channel, do not remove that onchain wallet, in case you close the channel the funds will come back to that one.