Ruurtjan
@ruurtjan.com
Full-time indie maker.
NsLookup.io
WhatIsMyISP.com
DNS for developers: https://www.nslookup.io/dns-course/
NsLookup.io
WhatIsMyISP.com
DNS for developers: https://www.nslookup.io/dns-course/
Pinned
Ruurtjan
@ruurtjan.com
· Nov 14
I'm making a starter pack with full-time bootstrapped tech founders.
Mostly indie hackers.
Who should I add? (You can suggest yourself 😉)
go.bsky.app/FiXK17p
Mostly indie hackers.
Who should I add? (You can suggest yourself 😉)
go.bsky.app/FiXK17p
Bought the Berkeley mono font for the terminal and Cursor.
Pleasantly surprised by how much more enjoyable those are now 🤗
Ligatures make code more scannable and readable, too.
Would recommend.
usgraphics.com/products/ber...
Pleasantly surprised by how much more enjoyable those are now 🤗
Ligatures make code more scannable and readable, too.
Would recommend.
usgraphics.com/products/ber...
TX-02 Berkeley Mono™ Typeface
A love letter to the golden era of computing.
usgraphics.com
September 19, 2025 at 9:52 AM
Bought the Berkeley mono font for the terminal and Cursor.
Pleasantly surprised by how much more enjoyable those are now 🤗
Ligatures make code more scannable and readable, too.
Would recommend.
usgraphics.com/products/ber...
Pleasantly surprised by how much more enjoyable those are now 🤗
Ligatures make code more scannable and readable, too.
Would recommend.
usgraphics.com/products/ber...
Vanity metric, but still kinda exciting that there are only 50k sites with more authority than nslookup.io
August 1, 2025 at 11:01 AM
Vanity metric, but still kinda exciting that there are only 50k sites with more authority than nslookup.io
Programming is a serious profession.
July 15, 2025 at 10:41 AM
Programming is a serious profession.
const showSummary = email.length > summary.length;
July 8, 2025 at 7:17 AM
const showSummary = email.length > summary.length;
Cursor after adding an MCP
June 19, 2025 at 6:56 AM
Cursor after adding an MCP
The only way to go fast is to go fast.
June 5, 2025 at 8:32 PM
The only way to go fast is to go fast.
Teachable is forcing a price hike again.
Seriously tempted to make a $0/month +$5 per student course hosting saas.
Seriously tempted to make a $0/month +$5 per student course hosting saas.
May 29, 2025 at 8:27 AM
Teachable is forcing a price hike again.
Seriously tempted to make a $0/month +$5 per student course hosting saas.
Seriously tempted to make a $0/month +$5 per student course hosting saas.
I needed a logo for isplookup.com, but didn't want to spend more than 5 minutes. Found icon.kitchen and made one in 2 🥰
ISP lookup
ISP lookup shows your IPv4 and IPv6 addresses and their internet service providers. You can also enter an IP or domain name to find their ISPs.
isplookup.com
May 28, 2025 at 5:41 PM
I needed a logo for isplookup.com, but didn't want to spend more than 5 minutes. Found icon.kitchen and made one in 2 🥰
The domain name isplookup.com dropped last week, so I made this online tool. It shows your IPv4 and IPv6 addresses and their internet service providers.
You can also enter an IP or domain name to find their ISPs.
Not as fancy as some startups, but I hope it'll have a tiny impact on many people :)
You can also enter an IP or domain name to find their ISPs.
Not as fancy as some startups, but I hope it'll have a tiny impact on many people :)
ISP lookup
ISP lookup shows your IPv4 and IPv6 addresses and their internet service providers. You can also enter an IP or domain name to find their ISPs.
isplookup.com
May 27, 2025 at 7:39 AM
The domain name isplookup.com dropped last week, so I made this online tool. It shows your IPv4 and IPv6 addresses and their internet service providers.
You can also enter an IP or domain name to find their ISPs.
Not as fancy as some startups, but I hope it'll have a tiny impact on many people :)
You can also enter an IP or domain name to find their ISPs.
Not as fancy as some startups, but I hope it'll have a tiny impact on many people :)
Reposted by Ruurtjan
I was a tech guy in 90's. There was a feeling amongst the older guys that us new breed were idiots because we were only working on the application layer and didn't understand the 1's and 0's. Many of my dads friends believed you shouldn't be able to drive a car unless you knew how to fix it.
May 21, 2025 at 11:11 AM
I was a tech guy in 90's. There was a feeling amongst the older guys that us new breed were idiots because we were only working on the application layer and didn't understand the 1's and 0's. Many of my dads friends believed you shouldn't be able to drive a car unless you knew how to fix it.
I don’t understand why people advise junior developers to avoid using AI.
They lack experience, but they’re not stupid.
Surely they’ll eventually figure the right design.
Besides, reading code and evaluating its quality is a super valuable skill, which you’ll learn much faster with AI.
They lack experience, but they’re not stupid.
Surely they’ll eventually figure the right design.
Besides, reading code and evaluating its quality is a super valuable skill, which you’ll learn much faster with AI.
May 20, 2025 at 10:40 AM
I don’t understand why people advise junior developers to avoid using AI.
They lack experience, but they’re not stupid.
Surely they’ll eventually figure the right design.
Besides, reading code and evaluating its quality is a super valuable skill, which you’ll learn much faster with AI.
They lack experience, but they’re not stupid.
Surely they’ll eventually figure the right design.
Besides, reading code and evaluating its quality is a super valuable skill, which you’ll learn much faster with AI.
Presented without comment.
May 18, 2025 at 5:33 PM
Presented without comment.
Where are all the Chromium forks with AI agents?
Should be a much better platform for automation for most people.
Should be a much better platform for automation for most people.
May 15, 2025 at 8:14 AM
Where are all the Chromium forks with AI agents?
Should be a much better platform for automation for most people.
Should be a much better platform for automation for most people.
Looking for a side project?
Subtitlewiki . com just dropped.
Find popular shows / movies. Generate perfectly synced subtitles in all languages using better AI than what’s currently out there. Offer for free and show 2 ads per page.
Differentiate by quality, not quantity.
Subtitlewiki . com just dropped.
Find popular shows / movies. Generate perfectly synced subtitles in all languages using better AI than what’s currently out there. Offer for free and show 2 ads per page.
Differentiate by quality, not quantity.
May 9, 2025 at 5:51 AM
Looking for a side project?
Subtitlewiki . com just dropped.
Find popular shows / movies. Generate perfectly synced subtitles in all languages using better AI than what’s currently out there. Offer for free and show 2 ads per page.
Differentiate by quality, not quantity.
Subtitlewiki . com just dropped.
Find popular shows / movies. Generate perfectly synced subtitles in all languages using better AI than what’s currently out there. Offer for free and show 2 ads per page.
Differentiate by quality, not quantity.
I was away for 2 weeks.
What’s the meta now?
Which models for planning and coding?
What’s the meta now?
Which models for planning and coding?
May 7, 2025 at 6:40 AM
I was away for 2 weeks.
What’s the meta now?
Which models for planning and coding?
What’s the meta now?
Which models for planning and coding?
For SEO:
- Be trustworthy
- Per page, solve 1 user problem well and clearly
- Make users happy
For LLM optimisation:
- Be trustworthy
- Per page, solve 1 user problem well and clearly
- Make users happy
- Be trustworthy
- Per page, solve 1 user problem well and clearly
- Make users happy
For LLM optimisation:
- Be trustworthy
- Per page, solve 1 user problem well and clearly
- Make users happy
May 6, 2025 at 5:07 AM
For SEO:
- Be trustworthy
- Per page, solve 1 user problem well and clearly
- Make users happy
For LLM optimisation:
- Be trustworthy
- Per page, solve 1 user problem well and clearly
- Make users happy
- Be trustworthy
- Per page, solve 1 user problem well and clearly
- Make users happy
For LLM optimisation:
- Be trustworthy
- Per page, solve 1 user problem well and clearly
- Make users happy
I’ll be impressed by your AI if it can identify the exact toy set this wheel is part of.
So far none could.
So far none could.
May 4, 2025 at 2:00 PM
I’ll be impressed by your AI if it can identify the exact toy set this wheel is part of.
So far none could.
So far none could.
I’m done chasing the tech hype cycle.
Give me boring tech and a problem to solve.
Give me boring tech and a problem to solve.
May 2, 2025 at 8:38 PM
I’m done chasing the tech hype cycle.
Give me boring tech and a problem to solve.
Give me boring tech and a problem to solve.
Spotted sankey charts in the wild
April 8, 2025 at 7:40 AM
Spotted sankey charts in the wild
Just visited a website with a guestbook, weather widget and page view counter.
Nostalgia hit me in the face.
Nostalgia hit me in the face.
April 2, 2025 at 7:34 AM
Just visited a website with a guestbook, weather widget and page view counter.
Nostalgia hit me in the face.
Nostalgia hit me in the face.
How do I check if a logo design isn’t too similar to an existing logo?
Any sites that are searchable?
Any sites that are searchable?
March 16, 2025 at 10:29 AM
How do I check if a logo design isn’t too similar to an existing logo?
Any sites that are searchable?
Any sites that are searchable?
I regret to inform you that software engineering will transition to requirements engineering.
March 3, 2025 at 8:10 PM
I regret to inform you that software engineering will transition to requirements engineering.
Ok. My #1 priority this week is becoming crazy effective with coding AI.
Hit me with your best resources. Articles, tools, videos. Let’s go
Hit me with your best resources. Articles, tools, videos. Let’s go
March 2, 2025 at 8:33 AM
Ok. My #1 priority this week is becoming crazy effective with coding AI.
Hit me with your best resources. Articles, tools, videos. Let’s go
Hit me with your best resources. Articles, tools, videos. Let’s go
I learned to slackline.
It was very easy.
All I did was get on it, take a few steps, fall and try again.
10 min per week for 6 months.
Now I tell myself to just start and keep going whenever I need to do something daunting.
It was very easy.
All I did was get on it, take a few steps, fall and try again.
10 min per week for 6 months.
Now I tell myself to just start and keep going whenever I need to do something daunting.
February 25, 2025 at 6:21 PM
I learned to slackline.
It was very easy.
All I did was get on it, take a few steps, fall and try again.
10 min per week for 6 months.
Now I tell myself to just start and keep going whenever I need to do something daunting.
It was very easy.
All I did was get on it, take a few steps, fall and try again.
10 min per week for 6 months.
Now I tell myself to just start and keep going whenever I need to do something daunting.
Just fixed a bug that's been in production for 2 months, costing me $1500 🫠
Moving on...
Moving on...
February 24, 2025 at 10:04 AM
Just fixed a bug that's been in production for 2 months, costing me $1500 🫠
Moving on...
Moving on...