While "One Lie" might be a play on words, there is a technical library called that deals with Numerical Lie-theory in C++ and Python.
If your query is related to gaming performance or legacy software, is a common utility that received a significant update in version 0.5.2. One Lie [v0.5.2]
The mod for Kerbal Space Program released version v0.5.2 in late 2025. While "One Lie" might be a play on
Used for integrating Schrodinger equations and other differential equations on Lie groups. What’s New — xarray 0.7.0 documentation One Lie [v0.5.2]
Backporting patches to resolve crashes and performance regressions in DirectDraw applications. 2. Kerbal Space Program (KSP) Modding: Sterling Systems