I think escape rooms are really neat, but my interest is more in the puzzle design than in solving existing…
SubscriberBoard is a four-digit, seven-segment display scaled up to a size that makes it perfect for wall art! It connects to a Home Assistant home automation server and can show whatever four-digit numbers that server can send via MQTT.
Instructions on how to assemble and configure my NASTIER redundant micro NAS system for ZimaBlade single-board servers.
Termi2 is a vintage TI Silent 700 (Model 745) with an added device of my own design that lets users type questions and receive printed answers from Wolfram Alpha.
Comparatron is my own digital optical comparator design. It is open source and anyone can build it and use the software interface I programmed.