So your coworkers, presumably health care professionals, refused to accept the most basic public health measure, and expected to keep working, presumably in proximity to vulnerable populations? I hardly think their employer is the unreasonable party here. (E.g. I also wouldn't hire a lawyer who advocated trial by combat or a chemist who advocated alchemy...)
You might also like "Fluid Engine Development" if this stuff is your cup of tea. I believe there is complete code with it.
https://fluidenginedevelopment.org/