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
Β· 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 π)
go.bsky.app/FiXK17p
Mostly indie hackers.
Who should I add? (You can suggest yourself π)
go.bsky.app/FiXK17p
Bought the Berkeley mono font for the terminal and Cursor.
Pleasantly surprised by how much more enjoyable those are now π€
Ligatures make code more scannable and readable, too.
Would recommend.
usgraphics.com/products/ber...
Pleasantly surprised by how much more enjoyable those are now π€
Ligatures make code more scannable and readable, too.
Would recommend.
usgraphics.com/products/ber...
TX-02 Berkeley Monoβ’ 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 π€
Ligatures make code more scannable and readable, too.
Would recommend.
usgraphics.com/products/ber...
Pleasantly surprised by how much more enjoyable those are now π€
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;
Congratulations on this type of problem π
June 19, 2025 at 11:17 AM
Congratulations on this type of problem π
β10 hours straight. Heβs a machine.β
June 19, 2025 at 7:00 AM
β10 hours straight. Heβs a machine.β
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 π₯°
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 π₯°
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.
Do you see any reason that prevents AI from being incorporated into the process?
May 21, 2025 at 8:20 AM
Do you see any reason that prevents AI from being incorporated into the process?
Itβs very early days, so makes sense that things diverge before they converge.
In my experience, AI code assistants are already good enough to significantly speed up my development and show me approaches I didnβt think of myself.
We all need to learn how to use it and what itβs good enough at now.
In my experience, AI code assistants are already good enough to significantly speed up my development and show me approaches I didnβt think of myself.
We all need to learn how to use it and what itβs good enough at now.
May 21, 2025 at 7:51 AM
Itβs very early days, so makes sense that things diverge before they converge.
In my experience, AI code assistants are already good enough to significantly speed up my development and show me approaches I didnβt think of myself.
We all need to learn how to use it and what itβs good enough at now.
In my experience, AI code assistants are already good enough to significantly speed up my development and show me approaches I didnβt think of myself.
We all need to learn how to use it and what itβs good enough at now.
But theyβre probably faster? Do code reviews and show them prompts that point out the weakness of their code. Theyβll learn faster than the other cohort that way, simply because their iteration cycle is shorter.
Encourage that cohort to leverage AI as a learning tool, rather than a code generator.
Encourage that cohort to leverage AI as a learning tool, rather than a code generator.
May 21, 2025 at 7:41 AM
But theyβre probably faster? Do code reviews and show them prompts that point out the weakness of their code. Theyβll learn faster than the other cohort that way, simply because their iteration cycle is shorter.
Encourage that cohort to leverage AI as a learning tool, rather than a code generator.
Encourage that cohort to leverage AI as a learning tool, rather than a code generator.
After each session, see if you can find coding conventions or other opinionated things you can define as prompt rules. Commit them to git so the entire team will prompt AI similarly.
May 21, 2025 at 7:37 AM
After each session, see if you can find coding conventions or other opinionated things you can define as prompt rules. Commit them to git so the entire team will prompt AI similarly.
Working with AI is a skill that devs of any skill level can and should learn.
May 21, 2025 at 7:37 AM
Working with AI is a skill that devs of any skill level can and should learn.
Start with function signatures and return types, then work through to implementation. Continuously iterate and optionally revert and try again with clearer requirements. When youβve shown them a couple of times, theyβll understand what to look out for when evaluating the AI responses.
May 21, 2025 at 7:37 AM
Start with function signatures and return types, then work through to implementation. Continuously iterate and optionally revert and try again with clearer requirements. When youβve shown them a couple of times, theyβll understand what to look out for when evaluating the AI responses.
Iβd start with working alongside them if you have the time and let them work with ai. Prompt for design options and their tradeoffs. Provide additional non-functional requirements until a decent approach emerges. Then let it summarise and start iterating on implementation.
May 21, 2025 at 7:37 AM
Iβd start with working alongside them if you have the time and let them work with ai. Prompt for design options and their tradeoffs. Provide additional non-functional requirements until a decent approach emerges. Then let it summarise and start iterating on implementation.
It sounded like youβd advise juniors against using AI. Secretly going against the advice of a senior can induce shame.
May 21, 2025 at 7:28 AM
It sounded like youβd advise juniors against using AI. Secretly going against the advice of a senior can induce shame.
If used correctly (which you can teach junior devs), AI can be a medior pair programmer and private tutor.
May 21, 2025 at 6:54 AM
If used correctly (which you can teach junior devs), AI can be a medior pair programmer and private tutor.
Why donβt you teach them how to leverage AI to accelerate their growth?
May 21, 2025 at 6:51 AM
Why donβt you teach them how to leverage AI to accelerate their growth?
Imagine telling them that they canβt look at how others tie their laces because they might do it badly/wrongly.
Shame them into painstakingly figuring it out by themselves by trial and error.
Shame them into painstakingly figuring it out by themselves by trial and error.
May 21, 2025 at 6:49 AM
Imagine telling them that they canβt look at how others tie their laces because they might do it badly/wrongly.
Shame them into painstakingly figuring it out by themselves by trial and error.
Shame them into painstakingly figuring it out by themselves by trial and error.