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yanan yu

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The nightmare of UK sprint planning (and the working days calculator that fixes it) 🇬🇧🗓️

The nightmare of UK sprint planning (and the working days calculator that fixes it) 🇬🇧🗓️

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2 min read

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The UK's weirdest legacy bug: Stones to Kg (and a privacy-first fix) 🇬🇧⚖️

The UK's weirdest legacy bug: Stones to Kg (and a privacy-first fix) 🇬🇧⚖️

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3 min read
Solving the UK's absurd Fuel Math: A privacy-first calculator for road trips 🚗⛽

Solving the UK's absurd Fuel Math: A privacy-first calculator for road trips 🚗⛽

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3 min read
Buying a house in the UK? I found a Stamp Duty Calculator that doesn't steal your data 🏡💻

Buying a house in the UK? I found a Stamp Duty Calculator that doesn't steal your data 🏡💻

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2 min read
The 2026/27 UK Tax Hack for LTD Contractors: A Salary vs Dividend Calculator built right 🇬🇧💸

The 2026/27 UK Tax Hack for LTD Contractors: A Salary vs Dividend Calculator built right 🇬🇧💸

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2 min read
I finally found an IR35 Calculator that doesn't suck (and respects privacy) 🇬🇧☂️

I finally found an IR35 Calculator that doesn't suck (and respects privacy) 🇬🇧☂️

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2 min read
🖼️ Hands-on: A No-Nonsense Image Hosting Tool for Fast Developer Workflows

🖼️ Hands-on: A No-Nonsense Image Hosting Tool for Fast Developer Workflows

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2 min read
🇬🇧 Surviving UK Taxes as a Dev: Finally, a Calculator That Respects UX

🇬🇧 Surviving UK Taxes as a Dev: Finally, a Calculator That Respects UX

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2 min read
🏡 Hands-on: A Mortgage Calculator That Actually Gets UX Right Hey DEV community! 👋

🏡 Hands-on: A Mortgage Calculator That Actually Gets UX Right Hey DEV community! 👋

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2 min read
🚀 Hands-on: Probably the Smoothest UK Tax Calculator I've Used

🚀 Hands-on: Probably the Smoothest UK Tax Calculator I've Used

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2 min read
I got tired of sketchy online color pickers, so I built a 100% client-side one (with a sticky UI for huge screenshots) 🎨

I got tired of sketchy online color pickers, so I built a 100% client-side one (with a sticky UI for huge screenshots) 🎨

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Comments
2 min read
Stop losing your Markdown images: I built a free, permanent image host for devs 🚀

Stop losing your Markdown images: I built a free, permanent image host for devs 🚀

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Comments
2 min read
I got tired of online JSON formatters freezing my browser, so I built a purely client-side one 🚀

I got tired of online JSON formatters freezing my browser, so I built a purely client-side one 🚀

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2 min read
Why I built a suite of 14 web tools using ONLY Client-Side JavaScript 🚀 (Zero-Trust Architecture)

Why I built a suite of 14 web tools using ONLY Client-Side JavaScript 🚀 (Zero-Trust Architecture)

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3 min read
Building a Zero-Server-Cost, 100% Client-Side Utility Toolbox (And Why You Should Stop Uploading API Keys to Random Sites)

Building a Zero-Server-Cost, 100% Client-Side Utility Toolbox (And Why You Should Stop Uploading API Keys to Random Sites)

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1 min read
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