A short one to close out the technical picks: a niche tool for people working with HueForge prints.
The HueForge Color Counter is a browser utility for HueForge, the software that turns images into layered, multicolor 3D prints through filament swaps rather than a full-color printer. The counter plans and tallies the filament colors required by a print. It is narrow, purpose-built software that removes one annoying step from a specific workflow. If you do not use HueForge, skip this one; it pairs thematically with the FDM nozzle-testing Reddit thread in the essays list.