VACASK, a free/open-source analog circuit simulator, now does device-level transient noise - a first among FOSS tools. Every resistor, diode, and transistor adds its own thermal, shot, and 1/f noise automatically, like Spectre does.
See how noise shapes oscillators, PLLs, and mixers in the time domain.
Repo: https://codeberg.org/arpadbuermen/VACASK
Funded by NLnet via the NGI0 Commons Fund.
