how to connect to server with electrum

how to connect to server with electrum?

Electrum Bitcoin Wallet is a reliable service that has been around since 2011. It is called a "thin" cold wallet, where the entire blockchain is not downloaded to the user's device but stored on a network server. In this case, the private key is stored encrypted on the user's computer and is never sent to the server.

what electrum, r electrum

Bitcoin desktop wallet client Electrum has released a 4.0 beta version, adding several important updates, including support for the Lightning network, nearly a year after the previous version of Electrum, 3.3.8 (last July). In the 4.0 beta version, Electrum mainly added features such as PSBT (partially signed Bitcoin transactions), Lightning Network, watchtowers (暸 watchtowers) and Submarineswaps (subliminal switching). (Github)

how do i opt-in rbf on electrum, on electrum

function opt (arr, proto) . . . . . __proto__ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . let arr s.1, 2.2, 3.3; for (let i s 0; i 10000; i s)?/JIT-optimized opt (arr, s); opt (arr, arr)