The PiShot is a 3D-printed compact camera built around a Raspberry Pi Zero 2 W and Camera Module 3, with an 18650 cell, a battery management board, an ST7789 SPI display on the rear, and a cold shoe on top. Builder Irtaza2009 published the repository on GitHub and is still actively updating it.
The software is a Python script, which is the real variable here. Python-based Pi cameras have a well-documented latency problem, and the article does not confirm this one escapes it. That unresolved question is reason enough to dig into the repository yourself.
The obvious next step is swapping the Camera Module 3 for a Raspberry Pi HQ Camera, which would push this into mirrorless compact territory. That upgrade has been done before, but the PiShot's form factor and active development make it a credible base for the attempt.
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