While setting up my #Bitcoin #NerdMiner via browser in #Linux I suffered this error: `Error: Failed to execute 'open' on 'SerialPort': Failed to open serial port.` I solved it with: `sudo setfacl -m u:USERNAME:rw /dev/ttyACM1` Source: https://community.home-assistant.io/t/solved-flashing-failing-immediately-on-linux/567332 #BitcoinMining