How to achieve Ultimate developer skills:
Step 1. Humble yourself by starting with the raw, unforgiving power of C.
Step 2. Attempt to purify your soul and memory safety by rewriting it all in Rust.
Step 3. Ascend to a higher plane of functional enlightenment (or utter confusion) by rewriting it again in Haskell.
Step 4. Congratulations! You are now Ultimate developer. Your code is perfect and immutable, and absolutely no one else on your team will understand a single line of it.