There's also the very lightweight "
Electrum Personal Server" (
EPS link) but it's quite outdated and haven't been updated for 3years now.
Let's
not
recommend that. Electrum communication protocol have changed few times[1], where i don't know minimum version accepted by newer version of Electrum. Bitcoin Core also occasionally change it's RPC call behavior.
Talking about outdated stuff, there's one Electrum plugin called bwt[2] which aim to let Electrum directly connect to Bitcoin Core. Although i
don'tdo not recommend it to OP since it haven't been updated for 4 years.
[1]
https://electrumx.readthedocs.io/en/latest/protocol-changes.html[2]
https://github.com/bwt-dev/bwt-electrum-plugin