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Show HN: Global crowd-sourced WiFi Speed Map

https://www.wifi.live/

wifi.live is a lightweight map that displays real, crowd-sourced speed tests from coworking spaces around the world. It’s built around one idea: instead of reviews saying “great WiFi,” show actual throughput measured on-site.First contributor to a new location earns a permanent Registered status for that spot. Tests are used with weighted averages to measure the reliability of WIFI at places...

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Re:Mark Wiens Food Map of the World on Monday December 01, 2025 @11:23PM (#46117516)
Been a fan of Mark's channel for quite some time and always look for the restaurants he reviews when I'm traveling. Decided to make a website with a visualization that shows all the places he's eaten across his videos. Has direct links to the restaurant on Google Maps and the corresponding YouTube video for over 1,000 restaurants he has reviewed over the years. Hope you enjoy!
Re: on Monday December 01, 2025 @12:22AM (#46103765)
Free and open source platform to micro-invest credit card rewards for every purchase. Say you have a card that earns 2% cashback on all purchases. If you pay $100, this will automatically invest $2 for you into the S&P500 or any stock of your choice. It's a new micro-investing strategy, but with reward money!

Show HN: Free and open-source platform to invest credit card rewards

https://github.com/henrynsmbl/micro-investing

I built this around the idea of micro-investing: investing small amounts consistently. I provided a few different strategies out of the box for you to use: round up (if you bought something for $5.30, it would invest $.70), investing credit card rewards (if you pay $100 for something with a credit card that earns 2% back, it will invest $2), and timed investment (invest $X every week, month,...

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Show HN: Credit card rewards for passive income

https://www.thecardcaddie.com/

Hey everyone,Whether you believe that credit card rewards can be considered passive income or not, figured I’d share this here.I’ve been working on a project called The Card Caddie, it is essentially a tool to know when to use the right credit card. I love to travel and have gotten so many flights and hotels at insane rates, timing when to use points. But the actual process of navigating credit...

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Re:Ask HN: What are you working on? (July 2025) on Sunday July 27, 2025 @04:00PM (#44704180)
Working on The Card Caddie (thecardcaddie.com) free credit card recommendation site + extension with no personal credit card info. Never miss a point again!

(Built for fun as I optimized my daily spending to get a year's worth of flights for free and friends wanted it haha)

Sounds good, thanks for checking it out, really appreciate it! I use just the credit cards reward program so I never collect any personal info! Working on adding more cards soon
Not that I am currently aware of haha! This is all based on an estimation of merchant categories from domains trained on statement info. And categories are built differently for each card, so trying to build around that. No master list that I scraped.

Show HN: The Card Caddie, free tool to optimize credit card points

https://www.thecardcaddie.com/

I’m relatively new to the whole “credit card game” but over the past year I’ve been optimizing my daily spending for points. In August I’m heading to Southeast Asia for a year, and I have all my flights covered using points earned just from everyday spending.Keeping track of all the different rewards categories was confusing, so I built The Card Caddie, a free tool that helps you figure out...

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