Ruby Batteries Included
summary
A concrete checklist of code and results: the app audit finds 135 gems and swaps many for stdlib pieces — Set, Enumerable/Enumerator, SimpleDelegator/Forwardable, SecureRandom — and builds a tiny GServer TCP server that returns hex or UUIDs, shells out to a Rust binary via spawn, sanitizes with Shellwords, and persists with PStore. Benchmark and VM compile flags enable tail-call optimization to make a recursive fib fast, Fiddle calls C math directly, WeakRef reduces memory, and Minitest runs tests with no extra gems.
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chapters (17)
- 0:00PLATINUM SPONSOR
- 0:15GOLD SPONSORS
- 0:57HOW MANY GEMS DOES IT TAKE TO BUILD AN APP?
- 2:02THE STANDARD LIBRARY
- 4:52Enumerable
- 7:49SimpleDelegator
- 8:53Forwardable
- 10:33Benchmark
- 14:49Fiddle
- 16:25WeakRef
- 18:13SecureRandom
- 19:17GServer
- 20:50Kernel#spawn
- 22:51Shellwords
- 24:55PStore
- 27:02MiniTest
- 28:23Other Fun Things








