This was the one I was referencing earlier. It's a reasonably promising outlook. The requirement is for an Electrum server connected to a Slimcoin node (many-to-one via ssl-tunnelled API calls is not forbidden but for robustness, each should have its own node) and an Electrum client that can connect to one of a number of Electrum servers. That gets you a “burnless” Slimcoin SPV wallet.

It's all in Python, a fact that has its pros and cons ....

$ sudo ./electrum-server start
Starting server as daemon
$ tail -f /var/log/electrum.log
INFO:electrum:http://:@localhost:41683/ {"params": [1149645], "method": "getblockhash", "id": "jsonrpc"}
INFO:electrum:http://:@localhost:41683/ {"params": [1], "method": "getblockhash", "id": "jsonrpc"}
INFO:electrum:http://:@localhost:41683/ {"params": ["000006e022fc5e432e55cd61885d6ab9bb2ad6d5cef943f0e397ee21fe37b5db"], "method": "getblock", "id": "jsonrpc"}
ERROR:electrum:string indices must be integers
ERROR:electrum:string indices must be integers
^C
$ sudo ./electrum-server stop
null
Waiting until process 15603 terminates...
Done.

As you may discern, this is one instance where a strongly-typed compiled language such as C++ would have an edge in minimising the number of generically unhelpful error messages caused by what might be argued as cavalier handling of runtime exceptions.

I'm working on it.

Cheers

Graham