My contributions ←
^{(non-exhaustive-nor-complete)}

Linux:

• Kernel, notably the patch series ALSA: usb-audio: Add quirk for Fiero SC-01, …(fw v1.0.0);
• Convinced to install Arch Linux (&| built it for) 11 people to the date, not counting myself;
• Maintainer of multiple AUR packages;
• Developer of the software side for the PinePhone fingerprint reader;
• Co-developer of an open-source driver for Goodix fingerprint sensors found in laptops;
• Author of multiple GNOME Shell extensions (also some gedit ones on my github);
• Contributor of [1, 2, 3, 4] projects aimed at utilizing all features of Huawei & Honor laptops;
• more coming...