This Python tool allows you to draw signal-flow graphs, calculate transfer functions (SymPy code is generated for further use in Jupyter notebooks), do graph manipulations (e.g., node elimination and graph transposition), and save a graph as TikZ for use in LaTeX documentation.
A few small changes that make it possible to create a standalone executable and installer with the fman build system, https://build-system.fman.io/manual/
A few small changes that make it possible to create a standalone executable and installer with the fman build system, https://build-system.fman.io/manual/