HomeBank - Access Financial Services. Easy, fee-free banking for entrepreneurs Get the financial tools and insights to start, build, and grow your business.
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
YNAB - Working hard with nothing to show for it? Use your money more efficiently and control your spending and saving with the YNAB app.
Rust - A safe, concurrent, practical language