ngspice, the mixed-level/mixed-signal circuit simulator, as a portable pre-built package for edapack.
Documentation: https://dvkit.org/edapack/ngspice-bin/
Releases, with one tarball per platform: https://github.com/EDAPack/ngspice-bin/releases
Install it with IVPM:
- name: ngspice-bin
url: https://github.com/edapack/ngspice-bin
src: gh-rls