Duarte
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sintrastellar.bsky.social
Duarte
@sintrastellar.bsky.social
Working on your favourite personal finance tracker https://popadex.com

Publishing three interesting things once a week at https://interessant3.substack.com
So apparently creators only capture about 2% of of the surplus they create!
This figure is so shockingly low that economists have suggested that the welfare-maximising marginal top rate of income tax should be reduced up to.. a negative 26%!
May 17, 2025 at 4:18 PM
I pushed a repo with canonical Rails 8 Copilot Chat instructions for VS Code. If you’re working with the new Rails stack and using Copilot, this should save you some time.

#rubyonrails #copilot #vscode #vibecoding
May 11, 2025 at 4:25 PM
Someone on an average wage in Spain - €1,000 net/month - pays 50% of their income in taxes, between social security and income tax. On top of that, they pay about 20% in indirect taxes on consumption.
January 12, 2025 at 5:49 PM
How do you create fixtures from the development database? This is one approach from Stackoverflow but surely there's a standard convention? #rubyonrails
January 1, 2025 at 11:34 PM
Did you know it only costs an employer in Lithuania $75K to give someone a PPP-adjusted disposable income of $100,000, while in Belgium it costs $200K?

I've made some UI changes to the calculator to facilitate some of these comparisons.

app.popadex.com/disposable_i...

#buildinpublic
December 31, 2024 at 8:52 PM
What a year it’s been! 🚀

Toyed with some experiments—an earthquake starter pack, premium custom GPTs—but realised PopaDex holds the most promise. Lessons learned: chasing every idea dilutes focus. Simplicity and customer feedback are everything. 💡
December 27, 2024 at 5:58 PM
Example:

💼 Gross income: €100,000 in Finland

• After taxes: €55,518

• Employer cost: €121,000

• PPP-adjusted income: $76,463

• Tax Rate of 54%

Flip it: Want $55,000 disposable income? It calculates the gross salary, net salary, income tax, social security, and employer
December 23, 2024 at 11:51 PM
Ever wondered how much of your salary you actually take home? Perhaps you'd like to know how much it would cost to employ someone in another country and what their disposable income would be.

Introducing the PopaDex Disposable Income Calculator 👇 🧵
December 23, 2024 at 11:51 PM