SoundCloud shadow-compared a new RPC protocol against production before ever serving it
SoundCloud mirrored a percentage of live traffic to its new Twirp endpoint, diffed the responses against the old REST endpoint, and only then cut over.
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已發佈案例
1,000 已發佈案例 · 定期更新Havana residents wired their LAN parties together into a 100,000-address street network
SNET's founders linked neighborhood LAN parties with $60 consumer routers, building one of the world's largest community networks under a US embargo.
閱讀案例Colombia traced Covid contacts through mobile ad IDs instead of building a tracing app
Servinformación repurposed the advertising IDs already on phones to find and message Covid contacts, skipping the app nobody would download.
閱讀案例Ramp cut ML model deployment from 4 months to 5 minutes with a YAML config system
Ramp replaced bespoke ML deployment code with a YAML schema that any engineer could fill in, turning months of work into minutes.
閱讀案例Internet Society reached roadless Kyrgyz villages by preloading Wikipedia onto a box
Internet Society skipped the last mile of cable entirely, hand-carrying an offline WiFi hotspot loaded with Wikipedia to villages no road reaches.
閱讀案例Salesforce found why its RAG app scored 90% in tests but 46% for real customers
Salesforce debugged RAG accuracy backward through each pipeline stage instead of blaming the model, taking enterprise accuracy from ~46% to over 90%.
閱讀案例Ramp cut its 45-minute test suite to under 5 minutes by chasing asymmetric bets
Ramp engineers measured first, tried the cheapest high-upside fixes, and stopped at diminishing returns, cutting a 45-minute test suite to 5 minutes.
閱讀案例MIT broke a battery trade-off by shrinking the electrolyte molecule, not redesigning it
MIT found a smaller cousin of a known stable solvent, beating a speed-vs-stability trade-off in sodium batteries
閱讀案例Cloudflare split Workers access into roles and scopes instead of one big permission list
Cloudflare gave agents fine-grained Workers access by crossing four roles with three scopes, instead of all-or-nothing grants.
閱讀案例Ramp split AWS roles per team, then made production access temporary and requested
Ramp replaced 3 standing AWS roles with 20+ team roles plus time-boxed, approved production access
閱讀案例Ramp cut Python CI time by tracing which classes a test actually touches
Ramp fixed coverage-based incremental testing by tracing inheritance at runtime, not just executed lines
閱讀案例JetBrains ran YouTrack's roadmap and bug tracker fully public, letting votes set priority
JetBrains opened YouTrack's roadmap and issue tracker to the public in 2009, using years of customer votes to decide which features actually ship.
閱讀案例Ramp isolated its UI component library in its own repo so design changes stopped leaking
Ramp split its design system into a separate repo and package with semantic naming, so feature work could no longer edit it as a side effect.
閱讀案例Ramp fixed a decaying ML codebase by grandfathering old errors, not fixing them all
Ramp adopted poetry, ruff, pytest, and mypy on a messy ML repo by ignoring old violations and enforcing only new code, restoring dev velocity.
閱讀案例McDonald's Malaysia made fries the meal, sold out 80,000 in 2 days, won Golden Kancil
McDonald's Malaysia launched a fries-only meal at RM10; all 80,000 sold out in two days, earning RM6.4M in media value.
閱讀案例Boston Public Schools replaced its gameable assignment rule with strategy-proof matching
In July 2005 Boston replaced its first-preference-first school assignment with deferred acceptance — a strategy-proof rule that made honest ranking safe.
閱讀案例Wikifarmer sold Greek farmers' stranded rice to the weddings that throw it.
Greece wastes 200+ tons of rice at weddings while farmers sit on unsold stock; Wikifarmer built a marketplace between them.
閱讀案例TNT Express made managers co-build optimisation models that saved €207 million.
A parcel carrier set up communities of practice to build optimisers for routing, scheduling and supply chain, saving €207 million between 2008 and 2011.
閱讀案例Thermo King put an automatic refrigerator on the truck so the cold travels with the cargo.
Joseph Numero lost a truckload of chickens to heat; he and Frederick McKinley Jones put a cooler on the truck, so any vehicle becomes a cold chain.
閱讀案例Tata Steel let a predictive controller run its annealing furnace, cutting fuel 8%
Tata Steel and IIT Bombay replaced reactive furnace control with model predictive control, lifting premium-grade output and cutting fuel and CO2 8% per ton.
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