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summary
Hacks and numbers, not jokes: reverse‑engineers an Olympus OM‑D Wi‑Fi protocol by SSH‑tunneling the camera through a Raspberry Pi, writes a Ruby WEBrick proxy to capture traffic and a client to download files, buys a capture card to record Animal Crossing and builds an A‑A‑RON sign PCB that lights on test failures. Benchmarks use StackProf and benchmark‑ips to profile ActiveRecord WHERE generation, add a precompiled node, get ~30% speedup vs master but remain ~18% slower than manual sanitization.
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chapters (30)
- 0:00Start
- 10:08Evan Texted Me
- 14:25Nmap output
- 18:10SSH Tunnel
- 18:58Replay GET with WEBRick
- 20:35Simple Olympus Client
- 24:49Check Out This Life Hack!
- 28:10Where Behavior
- 29:45Benchmark (no queries executed)
- 30:06Benchmark (fixed)
- 31:17Using StackProf
- 32:32Where Profile (manual sanitization)
- 35:24Where Profile: Sort by Total
- 35:56Where Profile (self sanitize): Sort By Total
- 37:16Relation Objects
- 39:15AST Access
- 39:54DOT Output
- 40:11DOT command line tool
- 42:15Generate DOT
- 42:41Auto-Sanitized AST
- 43:15StackProf Comparison
- 44:55Relation to AST Conversion
- 46:24Params Hash (in a Controller)
- 47:20URL Slugs
- 47:58Very Large Numbers
- 49:25Pre-Compiled Nodes
- 50:04Faster Compilation
- 50:28Performance Difference
- 50:56Compare with Self-Sanitization
- 52:31Eager Compilation
