@Dobby233Liu's userscript, that highlights all commits present to a certain point in time. The tool is meant for use with AOSP and Chromium's Git instances only.
To install Froyocomb Helper, use a userscript manager such as Tampermonkey. Then, click here. After clicking, in newly opened tab, select the option to install.
@inteneich's Bash script, which prepares a build environment for Android.
Download the script from the repository here or use the command below (Ubuntu 14.04+). There are no dependencies required to use the script.
sudo bash -c "$(wget -qO- https://raw.githubusercontent.com/froyocomb/tools/main/envsetup.sh)"
@main3782's batch script, manually applies old Android OTA patches on top of existing files. Requires bspatch.exe and xdelta3.exe, which are included.