TeX environments
TeX Live
- https://www.tug.org/texlive/
- TeX Live is an easy way to get up and running with the TeX documentproduction system.
- One of maintainer of TeX Live, Norbert Preining is living in Japan.
- TeX Live is including e-upTeX, XeTeX, LuaTeX, LuaJITTeX.
SageMathCloud
- https://cloud.sagemath.com/
- "SageMathCloud is collaborative computational mathematics SageMath, Python, LaTeX, and terminals in your browser."