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Lazarus - Lazarus is a cross-platform IDE for the Free Pascal compiler.
Rust - A safe, concurrent, practical language
Free Pascal - Free Pascal (aka FPK Pascal) is a 32 and 64 bit professional Pascal compiler.
C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
C (programming language) - C is a general-purpose computer programming language.