Hey, a bunch of shell scripts glued to some DOS executables were good enough in my time. We had no fancy schmancy github back in those days, yet we built this business on nothing but hard work and pizza.
Why, the sources of the DOS exes were long gone by second year, lost in the crash of that old Windows Milenium machine that used to sit in our dorm room and was uniquely configured to compile them using Turbo Pascal - we figured it was a safe option to use as a source repository. But that still didn't stop us - we implemented the remaining features by patching assembly.