electrum-personal-server VS Fulcrum

Follow the instructions on Electrum Personal Server. Don't let the word "server" deter you. Often this can mean "open a localhost http port". Assuming you have enough privledge on your PC to bind a TCP/IP port, you should be fine.

There are some server implementations that make use of XPUBs. For instance, Electrum Private Server is an implementation that must be configured with XPUBs of all wallets you want to use with it, so it can scan the blockchain for them, in return for much lower resource usage than regular servers that have to index the necessary information of every transaction ever made. But EPS is only suitable for private use, hence the name.

(A) Link it to your own Bitcoin Core node. You will need a little indexer called Electrum Private Server. https://github.com/chris-belcher/electrum-personal-server/releases . Once you do that, you won't have to ask any other Bitcoin node for transaction history or to broadcast your transactions. You become your own bank, literally.

Electrum Personal server v0.2.4 (Released: 16th June 2022) - https://github.com/chris-belcher/electrum-personal-server/releases

You need Electrum PERSONAL Server, not Electrum Server. Big difference!

To gain some privacy by using Electrum you should set up Tor on Network preferences or by installing your own Electrum server via Electrum Personal Server, ElectrumX or Electrs.

Fulcrum. Fulcrum requires more resources than romanz/electrs but it can still run on a Raspberry Pi, and it handles heavy queries much more efficiently. If you're having issues with romanz/electrs, Fulcrum is worth a try.

https://github.com/cculianu/Fulcrum (Electrum server, most wallets rely on it to find UTXOs belonging to addresses)

I am not familiar with EPS so the only thing I am going to suggest is to try Fulcrum which is another electrum server implementation and it's super fast. After setting it up, I let it sync and build the database (it took 8 hours) and now I can connect both Sparrow Wallet and BlueWallet to it both via Tor on port 50001 and SSL on port 50002 with the self-signed certificate I created.

How will you be using the node? FYI for a lot of use cases, an SPV friendly indexer like Fulcrum (high performance version of Electrum) will work, for example through the JS library Electrum Cash. There is also the massively powerful but also heavy ChainGraph. There is also Bitcoin Verde node which uses a SQL database for storage which is nice if you want that. Etc. But yeah, sucks about BCHD for now.

That's you running for example ElectrumX or Fulcrum, or any other Electrum-server implementation on top of your bitcoind.

Or you can run an electrum server on top of bitcoin core, which is what I do. I use Fulcrum, because it's really easy to install. Then you can point your Electrum wallet (Android or PC) or Sparrow (PC) or BlueWallet (iOS or Android) to your own electrum server.