Anfractuosity built a hyperspectral camera, the Waverider, using a miniature USB spectrometer, a stepper-driven x-y stage, and a Raspberry Pi Pico. It scans spectra one pixel at a time, taking nearly 19 hours for a 400x400 image but capturing more than just RGB values per pixel.
An article discussing the author's experience with the Rollei 35T camera, focusing on its suitability for hiking and the quality of its pictures in both black and white and color film.
