Smallest possible syntactically valid files of different types
...For example, the repository might include the minimal valid HTML file, minimal valid PDF, minimal valid executable, minimal valid image file, and so on. It serves both as a curiosity and as a utility for developers and testers who might need tiny stub files for testing tooling, parsing, or file-type handling. Because each file targets minimal syntactical correctness, the repository is valuable for edge-case testing (e.g., parsers handling smallest valid inputs). The project is open, community-welcoming (pull requests accepted) and carries a public-domain style waiver by the author. ...
An open source COBOL compiler for the PC x86-32 platform.
Generates GNU assembler and requires GCC to produce a binary.
Supports Linux, BSD and MinGW 32 bit platforms.
...Mainframe, mid-range, Mac, PC, Hercules, Raspberry.
Signal interest, we'll set you up with some (vetted) file, distribution and communication space.
Wildcat, GnuCOBOL, Micro Focus, Elastic, RainCode, IBM, Tiny COBOL, all the others, all in.
COBOL-UP