The Bike Shed

Rails performance, rebalancing coherence, and themes from career advice requests. Jeff Atwood on Rails performance An analysis of memory bloat in Active Record 5.2 134: Fastributes | The Bike Shed 17: Railing About Performance (Sam Saffron) | The Bike Shed Re-Rebalancing Coherence

We're joined by Vaidehi Joshi to discuss her multimedia empire, conference talk prep, getting started with computer science, and the applicability of a computer science education in every day development work. We wrap the episode with live Q&A from our RailsConf audience. Vaidehi Joshi on Twitter Base CS – The Blog Posts Base CS - The Podcast Base CS - The Video Series RailsConf 2018: Re-graphing The Mental Model of The Rails Router by Vaidehi Joshi Deckset for Mac: Presentations from Markdown RustConf 2017 - Type System Tips for the Real World by Sean Griffin EmberConf 2018: Closing Keynote by Saron Yitbarek & Vaidehi Joshi Conway's Game of Life Understanding Computation: From Simple Machines to Impossible Programs: Tom Stuart Announcing Skylight for Open Source!

An ORM that's a pleasure to use with raw SQL when needed? Sean discusses how that can be. Plus, Derek shares a new and exciting way for migrations to break! Diesel v1.3.0 RailsConf 2018: Up And Down Again: A Migration's Tale by Derek Prior ActiveSupport::Inflector

We're joined by Aaron Patterson for puns. Aaron also updates us on compacting GC for Ruby and Ruby 2.6's JIT compiler before telling us how he really feels about functional programming. Aaron Patterson (@tenderlove) on Twitter Parkinson's Law of Triviality (The Bike Shed Effect) Cargo Cult Building a Compacting GC for MRI by Aaron Patterson Allison McMillan on Twitter CAR and CDR Honeypot The method JIT compiler for Ruby 2.6 Closing Keynote by Aaron Patterson Opening Keynote: FIXME by David Heinemeier Hansson The Future of Rails 6: Scalable by Default by Eileen Uchitelle The Crystal Programming Language

Chris Toomey joins Derek to talk about their shared experience in Elm and their excitement about GraphQL. Chris on Twitter The Reader Monad — Part 1 Kind (type theory) Monads are like burritos Scala.js GraphQL | A query language for your API Tell Me When it Closes RailsConf 2017: In Relentless Pursuit of REST by Derek Prior Jobs at thoughtbot graphiql

We speak with Olivier Lacan about KeepAChangelog.com, tooling improvements for better developer experience, and the emotional impact of shutting down CodeSchool.com Keep a Changelog RubyGems Specification Reference Why Won't Bundle Update? bundler-stats The Life and Death of a Rails App by Olivier Lacan Online Learning Service Pluralsight Acquires Code School For $36 Million Human Errors by Olivier Lacan Log the original call site for an ActiveRecord query Olivier on Twitter

Amanda is joined by Alex Sullivan, Android developer at thoughtbot, to discuss the state of React Native and its new competitor from Google, Flutter. Flutter - Beautiful native apps in record time WTFs per minute Kotlin/Native thoughtbot's BART sign React Native at Instagram Xamarin Jake Whorton I/O Talk I/O: how to smartly use Fragments in your UI I/O: what's new in Architecture Components I/O: What's new in Android

Eileen Uchitelle joins us live from RailsConf to talk about exciting improvements coming to Rails 6, problems encountered by larger Rails apps, strategies for upgrading Rails and more! Eileen on Twitter The Future of Rails 6: Scalable by Default - Eileen's RailsConf Keynote The Bike Shed #22: No Capes! (Eileen Uchitelle) ActiveSupport::PerThreadRegistry Parallel Tests Test Queue DatabaseCleaner LHM: Online MySQL schema migrations GH-ost: GitHub's Online Schema Migrations for MySQL pt-online-schema-change Eileen removes dead code from GitHub after the Rails 4.2 upgrade Ruby on Rails: Security Long term support for Ruby on Rails 3.2 and Rails 2.3

Is the bug in Postgres? Sean takes over operations of crates.io and keeps himself very busy. We also wrap up our experience at RailsConf. Logical Replication in PostgreSQL 10 Heroku Error Codes: H12 Materialized view Run a query with a LIMIT/OFFSET and also get the total number of rows ActiveRecord: retrieving records in batches See open positions at thoughtbot! Become a Sponsor of The Bike Shed!

We catch up with Nick Means at RailsConf and discuss storytelling, "human error", advice for job seekers, and the idea of licensing software developers. Nick on Twitter The Bike Shed #71: It's a Total Hack - Our earlier episode discussing Nick's previous keynote at RailsConf Skunk Works by Nickolas Means Skunk Works: A Personal Memoir of My Years at Lockheed The Field Guide to Understanding 'Human Error' Atomic Accidents: A History of Nuclear Meltdowns and Disasters Retro Report | Go or no Go: The Challenger Legacy Three Mile Island accident Southwest’s Fatal Accident Prompts Scrutiny of Engine Inspections People wearing oxygen masks wrong xkcd: Compiling The Making of the Atomic Bomb: 25th Anniversary Edition Don't Get Distracted - Caleb Thompson

Derek & Sean discuss their final preparations for RailsConf, the role of Diesel's schema.rs is in comparison to schema.rb in Rails, and how Derek took down production. The American Chopper meme, explained PaperCall.io Diesel schema in depth

Derek and Sean discuss ethical concerns in software development and the prospect of licensing software developers. XFINITY Data Usage Center Reply All: A Pirate in Search of a Judge Design’s Lost Generation Cambridge Analytica scandals, explained Blogger Bobbie Duncan Recalls Getting Outed Accidentally On Facebook Tesla Criticized for Blaming Autopilot Death on Model X Driver Self-Driving Mercedes-Benzes Will Prioritize Occupant Safety over Pedestrians GDPR The Bike Shed at RailsConf 2018

Sean experiences a frustrating Ruby bug while building tooling to enforce module boundaries in Shopfiy's monolith. Derek deprecates Rails functionality instead of preparing his talk. TracePoint documentation Unicode Normalization Forms Buildkite Struct inheritance is overused Deprecate controller level force_ssl XFINITY Data Usage Center — FAQ

Amanda and Sean discuss Flutter, modeling the game of baseball, and the state of persistence and networking in Android. Flutter - Beautiful native apps in record time Dart programming language Functional reactive programming (FRP) Vuforia | Augmented Reality Baseball scorekeeping Room Persistence Library OkHttp Let’s Stop Ascribing Meaning to Code Points

Derek shares his experiences with new features in Ruby 2.5 before we turn our ire towards daylight savings time and timezones once more. Using yield_self for composable ActiveRecord relations What is the difference between a block, a proc, and a lambda in ruby? Ruby 2.5 prints backtrace and error message in reverse order ActiveRecord #merge Sean's Formulas Changed Timezones (The West Wing) Could New England actually change time zones? Pi Day - Wikipedia PostgreSQL Date/Time Functions and Operators

Amanda, Derek, and Sean discuss style guides, automated code formatting, and the cycle of disillusionment in development work. elm-format elm-analyse Android Kotlin Style Guide Swift API Design Guidelines Do we need to move away from Elm? "Native Code" in Elm 0.19 Android Performance: Avoid using ENUM on Android

Derek and Sean commiserate about the latest generation of MacBooks, Slack, and the state of the Web. SoftRAM thoughtbot/laptop: A shell script to set up a macOS laptop for web and mobile development. derekprior/dotfiles Salon.com wants to use your PC to mine cryptocurrency Brave: Secure, Fast & Private Web Browser with Adblocker iOS 11 Safari View Controller cookie passthrough Purpose-built - thoughtbot Internet2

We talk about everyone's favorite Fisher-Price web framework and a small upcoming change to it before pivoting to discuss Derek's experience with his first Elm PR. RailsConf 2018 Schedule “Just an Ass-Backward Tech Company”: How Twitter Lost the Internet War James Edward Gray II on Twitter's use of Rails Use create_or_find_by to avoid race condition in Rails 6.0 Shotgun Surgery Shuttle Reference Manual kOS: Kerbal Operating System

We chat about the Falcon Heavy launch before discussing a couple of issues Derek encountered when upgrading to Rails 5.2 Starman Double rocket landing Rails 5.2.0 RC1: Active Storage, Redis Cache Store, HTTP/2 Early Hints, CSP, Credentials Disallow raw SQL in dangerous AR methods Active Storage Overview — Ruby on Rails Guides

Derek and Sean debate the value provided by database migrations written in your programming language of choice versus those written in SQL. RailsConf 2018 MySQL Automatic Updating for TIMESTAMP and DATETIME CockroachDB - the open source, cloud-native SQL database. Lucky Migrations in Crystal ActiveRecord::Migration reversible ActiveRecord::Migration revert Parity: Shell commands for development, staging, and production parity for Heroku apps