I thought it was short for “All By Yourself”

It's the faster pronounciation of 'LBE' - Alby. LBE stands for: Lightning Browser Extension ** flies away ** CC nostr:nprofile1qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcppemhxue69uhkummn9ekx7mp0qqsyv47lazt9h6ycp2fsw270khje5egjgsrdkrupjg27u796g7f5k0s0pfy4z