Hi, lintian very-long-line-length-in-source-file check the DOS executable file. It's not right. For example: file pyUI/release/2.0/Bittle/BiBoard_V0/OpenCatEsp32Standard.ino.bin [1] pyUI/release/2.0/Bittle/BiBoard_V0/OpenCatEsp32Standard.ino.bin: DOS executable (COM), start instruction 0xe906022f 2c330840 lintian report: X: petoi-opencat source: very-long-line-length-in-source-file 1876 > 512 [pyUI/release/2.0/Bittle/BiBoard_V0/OpenCatEsp32Standard.ino.bootloader.bin:3] Thanks! [1] https://gitee.com/atzlinux/petoi-opencat/blob/atzlinux/latest/pyUI/release/2.0/Bittle/BiBoard_V0/OpenCatEsp32Standard.ino.bin