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

Tales of a rewrite

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
Avatar for Keith Smiley Keith Smiley
October 30, 2015
Technology
0
770

Tales of a rewrite

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

Avatar for Keith Smiley

Keith Smiley

October 30, 2015
Tweet

More Decks by Keith Smiley

See All by Keith Smiley
Rust meets Mobile
Avatar for Keith Smiley smileykeith
0
430
Lyft iOS tooling infrastructure summary 2022
Avatar for Keith Smiley smileykeith
0
460
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
ソフトバンク流！プラットフォームエンジニアリング実現へのアプローチ
Avatar for SoftBank Tech Night sbtechnight
1
200
OCI技術資料 : コンピュート・サービス 概要
Avatar for Oracle Cloud Infrastructure ソリューション・エンジニア ocise
4
54k
「通るまでRe-run」から卒業！落ちないテストを書く勘所
Avatar for asumikam asumikam
1
160
AI時代のSaaSとETL
Avatar for Shu Suzuki shoe116
1
190
Go 1.26 Genericsにおける再帰的型制約 / Recursive Type Constraints in Go 1.26 Generics
Avatar for turbofish ryokotmng
0
130
VLAモデル構築のための AIロボット向け模倣学習キット
Avatar for Ken Matsui kmatsuiugo
0
260
1GB RAMのラズピッピで何ができるのか試してみよう / 20260319-rpijam-1gb-rpi-whats-possible
Avatar for Akira Ouchi akkiesoft
0
480
プラットフォームエンジニアリングはAI時代の開発者をどう救うのか
Avatar for Kazuto Kusama jacopen
7
3.9k
20260311 ビジネスSWG活動報告（デジタルアイデンティティ人材育成推進WG Ph2 活動報告会）
Avatar for OpenID Foundation Japan oidfj
0
350
It’s “Time” to use Temporal
Avatar for Saji sajikix
3
220
[JAWSDAYS2026]Who is responsible for IAM
Avatar for Mizuki TSUJI mizukibbb
0
900
OSC仙台プレ勉強会　AlmaLinuxとは
Avatar for koedoyoshida koedoyoshida
0
190

Featured

See All Featured
Product Roadmaps are Hard
Avatar for C. Todd Lombardo iamctodd
PRO
55
12k
The #1 spot is gone: here's how to win anyway
Avatar for Tamara Novitovic tamaranovitovic
2
990
16th Malabo Montpellier Forum Presentation
Avatar for AKADEMIYA2063 akademiya2063
PRO
0
74
Fight the Zombie Pattern Library - RWD Summit 2016
Avatar for Marcelo Somers marcelosomers
234
17k
Bridging the Design Gap: How Collaborative Modelling removes blockers to flow between stakeholders and teams @FastFlow conf
Avatar for Kenny Baas-Schwegler baasie
0
480
How Fast Is Fast Enough? [PerfNow 2025]
Avatar for Tammy Everts tammyeverts
3
490
State of Search Keynote: SEO is Dead Long Live SEO
Avatar for Ryan Jones ryanjones
0
160
We Have a Design System, Now What?
Avatar for Morgane Peng morganepeng
55
8k
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
Avatar for Liv Day livdayseo
0
85
How to optimise 3,500 product descriptions for ecommerce in one day using ChatGPT
Avatar for Katarina Dahlin katarinadahlin
PRO
1
3.5k
Noah Learner - AI + Me: how we built a GSC Bulk Export data pipeline
Avatar for Tech SEO Connect techseoconnect
PRO
0
140
Designing for humans not robots
Avatar for Tammie Lister tammielis
254
26k

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