Colin Wren – Medium

Colin Wren

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The Startup

Building My First App — JiffyCV

My first ever app — JiffyCV — is now in beta! Here’s the story about how it came to be, the approach I took to make it and what I’ve…

Dec 18, 2020

Building My First App — JiffyCV

Dec 18, 2020

Mocking User Defaults in your Swift unit tests

Using a mock to ensure that your code that uses UserDefaults behaves correctly

4d ago

Mocking User Defaults in your Swift unit tests

4d ago

Going back to architectural basics to solve my problems with SwiftData

SwiftData is meant to make everything easier right? Right? Sometimes the old patterns for Swift development can help solve SwiftData issues

Jan 18

Going back to architectural basics to solve my problems with SwiftData

Jan 18

Generating and sharing a markdown file in SwiftUI and SwiftData

Allowing users to export their data and format it for their needs is a core part of my app, here’s how I added that functionality

Jan 10

Generating and sharing a markdown file in SwiftUI and SwiftData

Jan 10

The Expectation Effect

I recently hit a wall at work and it was suggested I read The Expectation Effect by David Robson as a way to understand it better

Jan 4

The Expectation Effect

Jan 4

My 2024

A bit of a mixed bag this year with some great adventures offset by some stuff out of my control I had to bounce back from

Dec 31, 2024

Dec 31, 2024

Using Tree Sitter to extract insights from your code and drive your development metrics

Your codebase is constantly evolving so how do you gain insights from that code in a reliable and resilient way so you can track change?

Dec 23, 2024

Using Tree Sitter to extract insights from your code and drive your development metrics

Dec 23, 2024

Creating a landing page for my app using Llama 3.2, Figma, Astro and Netlify

My app is now in beta and I needed a landing page to explain my app and get people to sign up. Here’s how I did it

Dec 15, 2024

Creating a landing page for my app using Llama 3.2, Figma, Astro and Netlify

Dec 15, 2024

Testing my product’s features with CutwormBDD and Swift

I’ve been using Gherkin feature files to define the functionality of my app and build my prototypes & analytics. And now testing too!

Dec 8, 2024

Testing my product’s features with CutwormBDD and Swift

Dec 8, 2024

Implementing qualitative analytics for your SwiftUI app with PostHog

Measuring how users are using your app’s features is a key step to building a product, PostHog is a great tool for doing this

Nov 29, 2024

Implementing qualitative analytics for your SwiftUI app with PostHog

Nov 29, 2024

Colin Wren

Colin Wren

Currently building reciprocal.dev. Interested in building shared understanding, Automated Testing, Dev practises, Metal, Chiptune. All views my own.

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