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BeGoodTool envisions a borderless digital world. As a top global platform built single-handedly, we transform complex tasks into effortless experiences. Our instant-access web utilities in 18 languages empower limitless productivity

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I thought a “go car-free” calculator would be simple — then I hit depreciation, 萬-units, and a very opinionated compound-growth model
yuntao_lin profile

I thought a “go car-free” calculator would be simple — then I hit depreciation, 萬-units, and a very opinionated compound-growth model

#javascript #vue #webdev
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6 min read
Why this DCA vs lump-sum simulator caps a single month’s crash at 95%
yuntao_lin profile

Why this DCA vs lump-sum simulator caps a single month’s crash at 95%

#javascript #vue #algorithms
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6 min read
Why “0% installments” and loans shouldn’t share the same formula (I only really got it after building a comparator)
yuntao_lin profile

Why “0% installments” and loans shouldn’t share the same formula (I only really got it after building a comparator)

#javascript #vue #webdev
3
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6 min read
Why simplified Chinese's 干 becomes three different traditional characters (and how a converter has to guess right)
yuntao_lin profile

Why simplified Chinese's 干 becomes three different traditional characters (and how a converter has to guess right)

#javascript #vue #opensource
1
Comments
5 min read
Why most QR codes you generate silently use the least efficient encoding mode (I only noticed after building a generator)
yuntao_lin profile

Why most QR codes you generate silently use the least efficient encoding mode (I only noticed after building a generator)

#javascript #vue #opensource
Comments 1
5 min read
Why a tumbling dice animation has to know the result before it ever starts spinning
yuntao_lin profile

Why a tumbling dice animation has to know the result before it ever starts spinning

#javascript #vue #css
2
Comments
5 min read
The 4% rule doesn't control your withdrawals — it just sizes the target (I didn't realize this until I built a FIRE calculator)
yuntao_lin profile

The 4% rule doesn't control your withdrawals — it just sizes the target (I didn't realize this until I built a FIRE calculator)

#javascript #vue #webdev
2
Comments
5 min read
I set out to build the app that would save the world. Embedding YouTube turned out to be the easy 10%.
yuntao_lin profile

I set out to build the app that would save the world. Embedding YouTube turned out to be the easy 10%.

#showdev #rust #tauri #javascript
8
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7 min read
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