SatSale VS electrum-personal-server

This seems useful for small merchants wanting to accept LN payments but not yet ready to host and run their own node. Proposed as potential addition for SatSale (lightweight self hosted Bitcoin payment processor) - https://github.com/SatSale/SatSale/issues/101.

Another lightweight one is SatSale - https://github.com/SatSale/SatSale

If you are able to run Python process on a server, check out SatSale. You can run it with full Bitcoin and Lightning Network node, but it also has "xpub mode", where you just configure extended public key (xpub) of your, for example, mobile phone wallet (like BlueWallet or Blockstream Green), and it uses mempool.space to check for payments. So, even if not backend by a full node, at least it's non-custodial solution. https://github.com/SatSale/SatSale

Maybe you could check out Satoshi Sale, which is lightweight Python alternative to BTCPay. https://github.com/nickfarrow/SatSale

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.