Three Devs And A Maybe



Join us each week as we discuss all things software development. Frequently joined by a far more intelligent guest on the show's topic, we by no means know everything, but love what we do. Topics range from daily developer life, PHP, frameworks, testing, good software design and our experiences using many other programming languages.


  • 164: Delving into Elixir with Keyvan Akbary

    09/05/2019 Duração: 01h07min

    In this weeks episode we are lucky to have Keyvan Akbary back on the show. We start off by discussing the job role he has taken since moving back to Madrid, and the importance of building autonomous teams. From here, we talk about the technology stack they are using at Cabify, highlighting some of the interesting features found in Elixir and Go. Finally, we touch upon Cabify’s infrastructure and deployment strategy, showcasing how awesome GitLab is along the way.

  • 163: Building SaaS Products with Simon Bennett

    18/04/2019 Duração: 48min

    In this weeks episode we chat to Simon Bennett about his experience bootstrapping SaaS products. We start off with how he got into software development and highlight some of his previous/current business ventures. This leads us to highlight treating each failure as an experiment, and the danger (as a developer) of using a new product idea as a platform to learn new technology. From here, we discuss the success he has had from SnapShooter, his new product Automaily, and the unique challenges building products targeted at developers. Finally, we touch upon how he comes up with new ideas, the necessity to quickly validate them, and advice for any listener who has an idea and is thinking of building a product from it.

  • 162: PHP + JIT = GR8 with Joe Watkins

    11/04/2019 Duração: 51min

    In this weeks episode we have good friend of the show Joe Watkins back on to discuss the recent developments in PHP. We start off by highlighting how code is currently compiled and executed using the Zend VM, and distill how the recently approved JIT (for PHP 8) will change this. From here we mention the reasoning for going down this path now, the difference between I/O vs CPU bound code, and the use-cases where the JIT will improve performance. This leads us to the PHP compiler project Anthony Ferrara is working on (with the goal of Ahead-of-Time PHP compilation), and the new parallel concurrency API Joe is working on which uses a model similar to Goroutines. Finally, we discuss his recently approved Weak References and Abolish Narrow Margins RFC’s.

  • 161: Exploring Bitcoin with Mattias Geniar

    01/04/2019 Duração: 01h14min

    In this weeks episode we are lucky to have Mattias Geniar back on the show to discuss his experiences delving into Bitcoin and Cryptocurrencies. We start off by chatting about his introduction to Bitcoin, the ‘bear market’ of 2018 and how valuable the ‘Mastering Bitcoin’ book is to understanding its’ internals. From here we move on to the concept of ‘Code is Law’ and the implications of such an approach, the pros n’ cons of being a developer in this space, and how he stores his private keys (not your keys, not your coins!). This leads us to highlight second-layer scaling solutions such as the Lighting Network, and the confusion around projects reusing the Bitcoin name. We then touch upon the power of Ethereum, its’ planned consensus transition from PoW to PoS, and how different it is developing on a distributed platform. Finally, we look at the Mimblewimble protocol and Atomic Swaps, discussing their use-cases and how they can improve the space.

  • 160: Serverless PHP using Bref with Matthieu Napoli and Neal Brooks

    23/02/2019 Duração: 51min

    In this weeks episode we are lucky to have both Matthieu Napoli and Neal Brooks on the show to discuss all things Serverless PHP. We start off by discussing what drew Matthieu to Serverless, the creation of the Bref project and the technical challenges encountered with getting PHP to work within the Lambda environment. From here, we touch upon the reasons behind moving from the Serverless Framework to SAM (for the 0.3 release) and how Bref uses the new Lambda Layers and Runtime API. This leads us on to highlight how a typical PHP project would use Bref, the decision to be opinionated in order to stay minimal and the experimental Loop SAPI. Finally, we envision what the future holds for the Bref project and Serverless compute.

  • 159: PHP Test Tooling and RFC Roundup with Joe Watkins

    08/01/2019 Duração: 56min

    In this weeks episode we are joined by Joe Watkins for a long overdue catchup. We start off the show by discussing what Sandboxing is and the new Sandbox extension he has developed. From here, we touch upon test-doubles/mocking frameworks, the reasoning behind building uopz in the past, and now componere/mimus to aid in testing. This leads us on to highlight what test coverage is, the history of coverage tooling within PHP, and the new exciting pcov extension he has released. Finally, we do a big ol’ RFC roundup, discussing RFCs that have been accepted for PHP 7.4 (FFI, Typed Properties and Preloading) and ones under discussion (JIT and Weak References).

  • 158: Hexagonal Architecture (Ports and Adapters) with Matthias Noback

    03/12/2018 Duração: 01h01min

    In this weeks episode we are lucky to have Matthias Noback on the show to discuss software architecture design. We start off the show by highlighting why we should invest time in the architecture of our software, and what is meant by ‘layers’ of an application. This leads us to discuss what Hexagonal Architecture (Ports and Adapters) actually is, Infrastructure vs. Core (Domain, Application) and the Dependency Inversion Principle. From here we mention the different responsibilities Ports and Adapters have, the different forms of testing you can do within this architecture and Use-cases/Command Buses. Finally, we touch upon the new book ‘Style Guide for Object Design’, which Matthias is currently in the process of writing.

  • 157: The Symfony Ecosystem with Nicolas Grekas

    25/10/2018 Duração: 49min

    In this week’s episode Edd and guest co-host Neal Brooks chat to Nicolas Grekas about all things Symfony. We start off discussion with how he got interested in programming, his introduction to Symfony, and his journey to now working on the code-base almost daily. This leads us on to talk about how he helped build the performance profiler Blackfire, and the importance of quantitative measurements whilst making performance improvements. From here we highlight managing pull requests, the social factors when leading open-source projects and Symfony’s continuous migration path. Finally, we touch upon the recently released Messenger component and upcoming Symfony Contracts initiative.

  • 156: Running Symfony on AWS Lambda with Neal Brooks

    28/09/2018 Duração: 57min

    In this weeks episode we are lucky to be joined by Neal Brooks, a fellow developer of Edd’s at MyBuilder. We start off by discussing how he got into programming, QBasic and video driver shenanigans. From here, we move on to introduce his SymfonyLive London talk ‘Running Symfony on AWS Lambda’. We highlight what drew him to Lambda, and the new tooling that is making it easier to run PHP and frameworks (such as Symfony) on it. This leads us to cover his demo application, and explore handling assets using S3, database migrations and AWS resources using CloudFormation. Finally, we debate using catch-all gateway endpoints vs. dedicated gateway endpoints and Lambda performance.

  • 155: Bridging the Security Gap with Scott Arciszewski

    26/09/2018 Duração: 01h12min

    In this weeks episode we are lucky to be joined by Scott Arciszewski to discuss all things Security. We start off by chatting about a recent talk he gave at DEF CON 25 and the importance of secure API design. From here we highlight Google Tink, misunderstandings of how PHP has changed over the years and what CVE’s are. This leads us on to delve into the tools and processes used within the reconnaissance phase of a security engagement. Finally, we briefly mention Quantum Computing and its impact on cryptography - followed by best practises for securely managing secrets within web applications.

  • 154: Why all the Curly Braces? with Scott Wlaschin

    30/08/2018 Duração: 01h10min

    In this weeks episode we are lucky to have Scott Wlaschin back on the show to discuss his most recent talk ‘Four Languages from Forty Years Ago’. We start off by talking about why the 1970’s was such an influential decade for language design. This leads us on to highlight what a programming language fundamentally is, and explain the many different paradigms that are present. From here, we explain the issue with throwing out the design phase completely when building software, and the interesting points made in Richard Gabriel’s ‘Worse is Better’ essay. Finally, we try to make sense of why all popular programming languages today follow a very similar style, and what is with all the curly braces?!

  • 153: The Mouse in the House

    06/08/2018 Duração: 48min

    In this weeks episode we start off discussion around testing in a Continuous Integration pipeline, and setting up a personal Bamboo CI system. We then move on to separating domain logic from the delivery, and how a Package-Bridge-Delivery split works. After a small mouse related intermission, we touch upon experiences building custom Babel plugins and testing using Jest, Travis CI and Docker. Finally, we highlight creating small CLI applications with Go, Serverless Offline and Logic-Gates/8-bit computers.

  • 152: New Jobs, Engagements and Marathons

    13/07/2018 Duração: 52min

    In this weeks episode Mick and Edd have a long overdue catchup! We start off the show by discussing Mick’s new job, the new stack he is using, and the benefits of working in a team. From here we highlight how his company uses Scrum (Sprints, Planning Poker and Story Points), handling event-sourced models with the introduction of GDPR, and logic within annotations. Finally, we touch upon Edd’s recent engagement and marathon, a new Serverless/React blog series he is working on, developing applications for the Ethereum blockchain, and how to manage application secrets.

  • 151: AWS, Golang and iOS Development with Alex Bilbie

    03/07/2018 Duração: 01h22s

    In this weeks episode we are lucky to be joined by Alex Bilbie to discuss all things AWS, Golang and iOS development. We start off the show by exploring how he got into programming, the stack he currently uses, and moving from a Monolith Laravel application to Golang microservices (deployed using ECS). From here, we move on to highlight his time developing the popular PHP OAuth 2.0 Server package, and how he first got interested in the AWS platform. We then discuss the power of composing services offered by AWS together, the concept of being ‘cloud-proof’ and the AWS certification system. Finally, we talk about his upcoming S3 master-class video series, use of Terraform for IaC and experiences building/shipping an iOS application.

  • 150: PHP was not designed for that?! with Joe Watkins

    15/06/2018 Duração: 44min

    In this weeks episode we catch-up with Joe Watkins. We start off discussion with a recent blog post he wrote about the unhelpful ‘just because you can, doesn’t mean you should’ response he sees surrounding some of his PHP extensions. From here we move on to highlight a debugger you can ‘composer require’, reasons behind creating such a tool and how it works. This leads us on to mention some updates to uopz for PHP 7 support, a weak references RFC he has recently published and future plans for PHP. Finally, we wrap up by talking about a CommonMark extension he has published, and how CQL provides the ability to efficiently traverse a document.

  • 149: Software Design with Scott Wlaschin

    04/06/2018 Duração: 01h03min

    In this weeks episode we are lucky to have Scott Wlaschin back on the show to discuss design within software. We start off by highlighting leaky abstractions, adopted tool-chains and transpiling languages into JavaScript. From here we move on to talk about what makes ‘good code’, and how evaluating this is heavily reliant on the requirements and context you are in. Finally, we discuss how OO and FP software architectures differ, advantages of being explicit over implicit and information-hiding at API boundaries.

  • 148: Site Reliability Engineering with Niall Murphy

    05/05/2018 Duração: 59min

    In this week’s episode we are lucky to be joined by Niall Murphy to discuss the discipline of Site Reliability Engineering. We start off by speaking about how he got into computing, how the SRE role came to be and what drew him to it. From here, we highlight the position of an SRE within a company/group, what SLA’s are, the positives of having 50% operations work caps and blameless postmortems. This leads us to talk about the reasoning behind striving for 100% uptime is actually detrimental to the product, and the benefits of having an Error Budget. Finally, we discuss how the role has evolved since its inception, the Wheel of Misfortune and what drew him to contribute to the seminal SRE book.

  • 147: Proof of Everything with Jay Smith

    30/04/2018 Duração: 01h05min

    In this week’s episode we are lucky to have Jay Smith back on the show to talk all things cryptocurrency. We start off the podcast by briefly recapping what’s been happening within the space since we last spoke. This leads us to discuss the Lighting Network running on the Bitcoin Mainnet, CryptoKitties, ERC-721 tokens and Ethereum Casper. From here we chat about Proof of Work, the environmental impacts of the protocol and how Proof of Stake differs. Finally, we chat about Web3, experiences using PIVX, Steemit and IPFS.

  • 146: EconoNAS and HTPC System Builds with Brian Moses

    11/04/2018 Duração: 01h03min

    In this weeks episode we are joined again by Brian Moses to discuss several of his recent system builds. We start off the show delving into his recent EconoNAS, highlighting the goals behind the build and how he goes about selecting the hardware parts. We then discuss his experience using White-label HDD’s for the first time. From here, we move on to discuss his HTPC - again highlighting the goals and the experience of live-streaming the build. This leads us on to highlight the AMD Ryzen Threadripper/Intel Coffee Lake i9 series of CPU’s, Graphics card pricing and the Steam Link Box. Finally, we look at what’s in store for his upcoming DIY NAS 2018 build, FreeNAS AMD support and the different available SSD connectors.

  • 145: The Power of Composition with Scott Wlaschin

    13/03/2018 Duração: 01h07min

    In this weeks episode we are lucky to have Scott Wlaschin back on the show. We start of discussion by highlighting his most recent talk on composition and some useful analogies to Lego, Brio and Unix. From here we move on to investigate function and type composition, the difference between a paradigm shift compared to simply a syntax one and the advantages of an opinionated language. This leads us on to mention how within application design pushing the side-effects to the edge and keeping the core domain pure is beneficial. Finally, we touch upon testing in functional languages, experiences whilst consulting and Rich Hickey’s ‘Effective Programs’ talk.

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