A non-custodial open-source Lightning Wallet with a WebLN browser.
Electrum itself is pure Python, and so are most of the required dependencies, but not everything.
Free and open-source Lightning wallet and accounts system. LNbits can run on top of any Lightning funding source. It supports LND, CLN, Eclair, Spark, LNpay, OpenNode, LightningTipBot, and with more being added regularly.