I would like to talk about payredu, a plain text accounting (PTA) library and cli written in C that can be compiled to any platform.
PTA has has some inherent performance problems due to the non-indexed nature of the text file format, but it is a worthy format because the financial data can be accessed by anyone with a notepad.
ledger-cli which is written in C++ solves most of the performance problems, but it is not easy to port it to other platforms because of heavy dependencies.
payredu on the other hand is a humble little project that offers a C library that can be integrated to other gui projects and offers a tiny cli that can be easily portable to other platforms. Thus achieving the "access anywhere anytime" ethos of plain text accounting.
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Why payredu?