Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Tales of a rewrite

Avatar for Keith Smiley Keith Smiley
October 30, 2015
Technology
800
0

Tales of a rewrite

The story of Lyft rewriting our app from scratch in Swift.

Avatar for Keith Smiley

Keith Smiley

October 30, 2015

More Decks by Keith Smiley

See All by Keith Smiley
Rust meets Mobile
Avatar for Keith Smiley smileykeith
0
460
Lyft iOS tooling infrastructure summary 2022
Avatar for Keith Smiley smileykeith
0
490
Postmortem for switching Lyft's iOS app to Bazel
Avatar for Keith Smiley smileykeith
4
1.7k
Lyft iOS tooling infrastructure summary 2019
Avatar for Keith Smiley smileykeith
2
1.6k
An alternative approach to building & shipping Swift apps
Avatar for Keith Smiley smileykeith
5
1.4k
Embrace Immutability
Avatar for Keith Smiley smileykeith
0
9.6k
Swift Thinking
Avatar for Keith Smiley smileykeith
0
12k

Other Decks in Technology

See All in Technology
MCPを待つな、パスキーを拡げよう（OAuth/OIDC Numa (Immersion) Workshop 2026）
Avatar for OpenID Foundation Japan oidfj
PRO
0
350
どんな手を使っても絶対間に合わせるスケジューラ
Avatar for asari asari194617
0
1.5k
AI時代の「OAuth認証」にどう物申すか？（OAuth/OIDC Numa (Immersion) Workshop 2026）
Avatar for OpenID Foundation Japan oidfj
PRO
0
340
Dylib Hijacking on macOS: Dead or Alive?
Avatar for Patrick Wardle patrickwardle
0
130
AI駆動開発を組織で促すために
Avatar for LINEヤフーTech (LY Corporation Tech) lycorptech_jp
PRO
7
8.7k
The Django UUID Story - DjangoCon US 2026
Avatar for Paolo Melchiorre pauloxnet
0
310
カーネルまで探検して理解するふたつの自動計装
Avatar for すみや sumiyae
0
340
Kiro Crew で始める マルチエージェント開発
Avatar for Kazuki Miura miu_crescent
PRO
0
200
When Token Pruning is Worse than Random: Understanding Visual Token Information in VLLMs
Avatar for SansanTech sansantech
PRO
0
140
パスキーでドライブする アカウント統合（OAuth/OIDC Numa (Immersion) Workshop 2026）
Avatar for OpenID Foundation Japan oidfj
PRO
0
360
RapidCopy2 Matrix I/Oエンジンによるファイルコピーソフトウェアの設計と実装
Avatar for Kengo Sawatsu kengosawa2
1
480
1.5時間を無駄にして学んだwsl2におけるaptとsnapの選択と仕組み
Avatar for y-osaka0123 yosaka0123
0
470

Featured

See All Featured
Unsuck your backbone
Avatar for Amy Palamountain ammeep
672
58k
It's Worth the Effort
Avatar for 3n 3n
188
29k
jQuery: Nuts, Bolts and Bling
Avatar for Doug Neiner dougneiner
66
8.6k
How to train your dragon (web standard)
Avatar for Monica Dinculescu notwaldorf
97
6.8k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
Avatar for Marc Duiker marcduiker
35
2.6k
YesSQL, Process and Tooling at Scale
Avatar for Rocio Delgado rocio
174
15k
Measuring Dark Social's Impact On Conversion and Attribution
Avatar for Stephen Akadiri stephenakadiri
2
260
Applied NLP in the Age of Generative AI
Avatar for Ines Montani inesmontani
PRO
4
2.4k
CSS Pre-Processors: Stylus, Less & Sass
Avatar for Bermon Painter bermonpainter
360
30k
Designing for Timeless Needs
Avatar for Cassini Nazir cassininazir
1
460
Breaking role norms: Why Content Design is so much more than writing copy - Taylor Woolridge
Avatar for UX Y'all uxyall
1
390
The untapped power of vector embeddings
Avatar for Frank van Dijk frankvandijk
2
1.8k

Transcript

  1. TALES OF A REWRITE

  2. None

  3. WHY REWRITE?

  4. LET'S REFACTOR INSTEAD

  5. None

  6. RETHINK THE PROBLEM

  7. None

  8. STARTING THE REWRITE

  9. TECHNICAL CHALLENGES

  10. None
  11. None

  12. SCHRÖDINGER'S CAT NIL

  13. None
  14. None
  15. None
  16. None
  17. None
  18. None
  19. None

  20. RAMPING UP

  21. None
  22. None

  23. EASING IN THE TEAM

  24. None

  25. SHIP IT

  26. NEW CODEBASE, NEW RULES

  27. None

  28. SWIFTLINT

  29. GITIQUETTE

  30. !!

  31. WHAT COULD HAVE GONE BETTER?

  32. None
  33. None
  34. None
  35. None

  36. WAS IT WORTH IT?

  37. QUESTIONS