I’m Patrik Eriksson. I make films and play music, and I build open-source tools for the things I need while creating. Two of those are below — both are free to use, fork and take apart.
CineMate
An open-source boilerplate for building a digital cinema camera using a Raspberry Pi and off-the-shelf parts. Buttons, switches, rotary encoders, potentiometers, OLED and HDMI are mapped in a single settings file; a web GUI lets you operate the camera using a phone, and a web API lets you build wireless controllers and tally lights. Runs on a fork of cinepi-raw, the raw recorder by Csaba Nagy.
HackThePiano
Web app for practicing reading notes and sheet music: connect a piano using MIDI and play along with the app. This is a fork of Wojciech Małota-Wójcik’s trainer — adds an on-screen piano for testing, C/F/G landmark markings to navigate the staff by, a free-practice mode, and a module framework for new exercises.