Portable versions of development tools (Python, PHP, R, Ruby, Julia...) for schools, work, home...
open source / free
PYTHON + SPYDER
Python Portable is a portable version of Python / Spyder for Windows.
Jupyter Portable is a portable version of Jupyter Lab for Windows.
Devserver is a complete, open source and ready-to-use PHP development environment. Devserver is portable, modular, fully configurable and easy to update and extend add_circle_outline