A few of the many repositories...

dtee (double tee)

Split and recombine standard output and standard error (primarily to detect output to standard error when running things from cron)

fiv (Fast Image Viewer)

Minimal image viewer to support rapid navigation and selection of large (50MP) JPEG photos. It preloads multiple images before and after the current image into memory so that it takes practically no time to switch between them.

(Needs a tidy up and to use Meson for building)

mcu-uuid-log, mcu-uuid-syslog, mcu-uuid-console, mcu-uuid-telnet

Console shell for ESP (and other Arduino-based) microcontrollers with tab completion and integrated logging framework (log output is displayed above the shell prompt so that it doesn't interrupt commands being typed)

mcu-uuid-modbus

Asynchronous modbus library for ESP (and other Arduino-based) microcontrollers

qmk-hid-identify

Identify the current OS to QMK [keyboard] device (currently only supports Linux and Windows)

aurora-coriolis

ESP32 WS281x multi-channel LED controller with MicroPython

(Needs documentation on how to use it)

candle-dribbler

ESP32 Zigbee multi-channel light controller

slf4j-android

SLF4J binding for the Android logger

bookmarks

Bookmarks management website and Ruby on Rails experiment

all-the-maps

Web page with links to all the map services for a latitude/longitude location

cursus-core, cursus-ui

Race series management program (incomplete but able to calculate results)

linux

• Support for full size (1500 byte) packets on PPPoE with RFC4638 (see also: ppp repository)
• Raspberry Pi (BCM2835) peripheral drivers for the interrupt controller, timer, watchdog, DMA, SDHCI, etc. (only some of these have made it into the mainline kernel)
• V4L/DVB bug fixes
• DSL stats on the Conexant AccessRunner USB ADSL modem

GnuCash (personal and small-business financial-accounting software)

• Previous and next working day behaviour for scheduled transactions
• Display blank/new transaction at the current date instead of after future transactions (essential when there are 3 months of future dated scheduled transactions)
• Quickly switch tab position from the View menu
• Performance improvements with large files and many open registers
• Various bug fixes, new preferences and British English translations

charybdis (IRC server)

• Support restarting ssld processes (to upgrade the TLS library) without affecting existing connections
• Support SCTP for dual IPv4+IPv6 use making server to server connections more reliable

intel-amt

Python tools for interacting with Intel's AMT hardware control interfaces (modified to allow provisioning of X.509 certificates for TLS)

rlmutag

Music tagging program using a multiple-history GNU readline interface (optimised for minimum effort sequential entry)

sshfp

Format SSH host key fingerprints in a text file and GPG sign it

wsl-assuan-unix-proxy

Windows Subsystem for Linux Assuan Unix Proxy (capable of forwarding the GPG agent to a remote host)

logitech-z906

Unofficial documentation for Logitech® Z906 Surround Sound Speakers

ikea-tradfri-e1812

Unofficial documentation for the IKEA® TRÅDFRI Shortcut Button (E1812)

utility-usage-website, network-traffic-usage-website

Rendering client-side SVG graphs and HTML pages with XSLT 1.0

rf433-ook

Arduino 433MHz OOK Receiver/Transmitter (realtime sampling of the code period without running out of time to handle the next interrupt)

scd30

Monitoring of temperature, humidity and CO₂ using a SCD30 sensor

ggroohauga

Alternative console and simulated amplifier interface for the ESP32-S2 microcontroller interacting with Logitech® Z906 Surround Sound Speakers

eightfold-seal

ESP32 Zigbee door open alarm