- Day 1: Bash
- Day 2: C
- Day 3: Python3
- Day 4: Scheme (Gambit)
- Day 5: Perl
- Day 6: Vimscript
- Day 7: Basic
- Day 8: Google Sheets
- Day 9: Haskell
- Day 10: SQL (sqlite3)
- Day 11: R
- Day 12: Lua
- Day 13: Clojure
- Day 14: Kotlin
- Day 15: Ruby
- Day 16: Dart
- Day 17: C#
- Day 18: Scala
- Day 19: JavaScript
- Day 20: Rust
- Day 21: TypeScript
- Day 22: Swift
- Day 23: F#
- Day 24: Go
- Day 25: PHP