Gordgelin Firmware Today

Many users run Gordgelin directly from the SD card. To flash it permanently:

Perhaps the most critical advantage is security. While an abandoned stock firmware will never receive patches for the KRACK Wi-Fi vulnerability or the Dirty Pipe Linux exploit, the Gordgelin community actively maintains a security changelog. Users receive updates via OTA (over-the-air) or manual patch bundles months—or even years—after the official end-of-life. gordgelin firmware

Unless you have a serial adapter, a multimeter, and hours of forum-diving experience, stick with official or well-audited open-source firmware. Many users run Gordgelin directly from the SD card

GordGelin is not a single operating system. Instead, it appears to be a used by a developer (or group) who compiles and patches firmware for: and hours of forum-diving experience