Jarek
@jarekceborski.com
Designer turned Founder
✨ @kerlig.com - AI writing assistant
🌐 @localcan.com - #1 Ngrok alternative
😎 http://Webhook.Cool - free webhook tester
✨ @kerlig.com - AI writing assistant
🌐 @localcan.com - #1 Ngrok alternative
😎 http://Webhook.Cool - free webhook tester
made it to the end of the world
October 28, 2025 at 8:52 PM
made it to the end of the world
Now for Mac & Windows! 💪
Please share with Windows devs you may know 🙏
Please share with Windows devs you may know 🙏
LocalCan™ for Windows is now in beta!
Please share with Windows devs you may know. You can download it from the website✌️
Please share with Windows devs you may know. You can download it from the website✌️
October 8, 2025 at 9:04 AM
Now for Mac & Windows! 💪
Please share with Windows devs you may know 🙏
Please share with Windows devs you may know 🙏
I wrote a tutorial:
Self-host Next.js with Docker Swarm and CI/CD Pipeline
✦ Next.js + Postgres + Nginx
✦ Dev & Prod setups
✦ CI/CD Pipeline
✦ Docker layer caching
✦ Logging with Loki
✦ Docker secrets
✦ Certificates
Self-host Next.js with Docker Swarm and CI/CD Pipeline
✦ Next.js + Postgres + Nginx
✦ Dev & Prod setups
✦ CI/CD Pipeline
✦ Docker layer caching
✦ Logging with Loki
✦ Docker secrets
✦ Certificates
October 1, 2025 at 4:48 PM
I wrote a tutorial:
Self-host Next.js with Docker Swarm and CI/CD Pipeline
✦ Next.js + Postgres + Nginx
✦ Dev & Prod setups
✦ CI/CD Pipeline
✦ Docker layer caching
✦ Logging with Loki
✦ Docker secrets
✦ Certificates
Self-host Next.js with Docker Swarm and CI/CD Pipeline
✦ Next.js + Postgres + Nginx
✦ Dev & Prod setups
✦ CI/CD Pipeline
✦ Docker layer caching
✦ Logging with Loki
✦ Docker secrets
✦ Certificates
What shocks me when comparing Kerlig vs. LocalCan is the revenue per website visit:
Kerlig = $0.16 / visit
LocalCan = $0.86 / visit
and I think Kerlig needs to pivot!
Kerlig = $0.16 / visit
LocalCan = $0.86 / visit
and I think Kerlig needs to pivot!
September 29, 2025 at 1:09 PM
What shocks me when comparing Kerlig vs. LocalCan is the revenue per website visit:
Kerlig = $0.16 / visit
LocalCan = $0.86 / visit
and I think Kerlig needs to pivot!
Kerlig = $0.16 / visit
LocalCan = $0.86 / visit
and I think Kerlig needs to pivot!
3D printing was fun
(circa 2020)
(circa 2020)
September 26, 2025 at 9:01 AM
3D printing was fun
(circa 2020)
(circa 2020)
Developers need great tools with top DX, period.
This is as true now as it was back in 2023 when LocalCan only allowed publishing .local domains on the local network.
TCP tunnels open a whole bunch of new possibilities when developing: K8s clusters, gRPC services or exposing local database
Enjoy!
This is as true now as it was back in 2023 when LocalCan only allowed publishing .local domains on the local network.
TCP tunnels open a whole bunch of new possibilities when developing: K8s clusters, gRPC services or exposing local database
Enjoy!
LocalCan v2.7.0 is here with TCP Tunnels (Beta)!
Now you can expose any TCP service to the internet:
✅ Database connections (PostgreSQL, MySQL, Redis)
✅ Kubernetes clusters
✅ SSH access
✅ gRPC services
✅ Custom TCP apps
Perfect for dev & testing! Enjoy 🚀
Now you can expose any TCP service to the internet:
✅ Database connections (PostgreSQL, MySQL, Redis)
✅ Kubernetes clusters
✅ SSH access
✅ gRPC services
✅ Custom TCP apps
Perfect for dev & testing! Enjoy 🚀
September 25, 2025 at 2:15 PM
Developers need great tools with top DX, period.
This is as true now as it was back in 2023 when LocalCan only allowed publishing .local domains on the local network.
TCP tunnels open a whole bunch of new possibilities when developing: K8s clusters, gRPC services or exposing local database
Enjoy!
This is as true now as it was back in 2023 when LocalCan only allowed publishing .local domains on the local network.
TCP tunnels open a whole bunch of new possibilities when developing: K8s clusters, gRPC services or exposing local database
Enjoy!
I have $1000 to spend on marketing for @Kerlig.com app, but no idea what to do - I need some suggestions pls 🙏
September 25, 2025 at 7:43 AM
I have $1000 to spend on marketing for @Kerlig.com app, but no idea what to do - I need some suggestions pls 🙏
renovation is not a reason to stop building (⌐■_■)
September 16, 2025 at 1:46 PM
renovation is not a reason to stop building (⌐■_■)
Next-gen Public URLs (tunnels) now in Beta!
Built in Go, using QUIC protocol 🏎️
Built in Go, using QUIC protocol 🏎️
LocalCan 2.6.0 is here!
🏎️ Next-gen Public URLs (Beta) built on QUIC protocol = up to 5x faster, lower latency & more reliable tunnels
🍏 macOS Tahoe UI support
Give it a try & share your feedback!
🏎️ Next-gen Public URLs (Beta) built on QUIC protocol = up to 5x faster, lower latency & more reliable tunnels
🍏 macOS Tahoe UI support
Give it a try & share your feedback!
September 16, 2025 at 10:19 AM
Next-gen Public URLs (tunnels) now in Beta!
Built in Go, using QUIC protocol 🏎️
Built in Go, using QUIC protocol 🏎️
shipping = endorphins
sales = dopamine
support = oxytocin
sales = dopamine
support = oxytocin
September 15, 2025 at 7:00 PM
shipping = endorphins
sales = dopamine
support = oxytocin
sales = dopamine
support = oxytocin
Weekly reminder: if you don't feel like watching hour-long talking head videos, @Kerlig.com is your friend - ask questions, summarize, unpack topics 🤙
September 15, 2025 at 1:37 PM
Weekly reminder: if you don't feel like watching hour-long talking head videos, @Kerlig.com is your friend - ask questions, summarize, unpack topics 🤙
Finalizing tests of the new LocalCan tunneling server – fully rewritten from Nginx+TypeScript to Go:
✅ WebSockets
✅ SSE
✅ Chunked encoding
✅ Multi-part forms
✅ Cookies
✅ Redirects
✅ Timeouts
✅ Large downloads
✅ Large uploads
✅ WebSockets
✅ SSE
✅ Chunked encoding
✅ Multi-part forms
✅ Cookies
✅ Redirects
✅ Timeouts
✅ Large downloads
✅ Large uploads
September 13, 2025 at 10:04 AM
Finalizing tests of the new LocalCan tunneling server – fully rewritten from Nginx+TypeScript to Go:
✅ WebSockets
✅ SSE
✅ Chunked encoding
✅ Multi-part forms
✅ Cookies
✅ Redirects
✅ Timeouts
✅ Large downloads
✅ Large uploads
✅ WebSockets
✅ SSE
✅ Chunked encoding
✅ Multi-part forms
✅ Cookies
✅ Redirects
✅ Timeouts
✅ Large downloads
✅ Large uploads
LAUNCH 🚀
Kerlig is now live on Uneed!
Likely the best AI quick chat you can get on macOS
I appreciate your support (ᵔᴥᵔ)
Kerlig is now live on Uneed!
Likely the best AI quick chat you can get on macOS
I appreciate your support (ᵔᴥᵔ)
September 11, 2025 at 7:19 AM
LAUNCH 🚀
Kerlig is now live on Uneed!
Likely the best AI quick chat you can get on macOS
I appreciate your support (ᵔᴥᵔ)
Kerlig is now live on Uneed!
Likely the best AI quick chat you can get on macOS
I appreciate your support (ᵔᴥᵔ)
huge milestone today – it all started as side projects on my laptop – now my apps have crossed $100k in revenue!
I've made several pivots in my life, but this one is definitely the most challenging, ambitious and rewarding so far
now back to work
I've made several pivots in my life, but this one is definitely the most challenging, ambitious and rewarding so far
now back to work
September 9, 2025 at 8:39 AM
huge milestone today – it all started as side projects on my laptop – now my apps have crossed $100k in revenue!
I've made several pivots in my life, but this one is definitely the most challenging, ambitious and rewarding so far
now back to work
I've made several pivots in my life, but this one is definitely the most challenging, ambitious and rewarding so far
now back to work
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
September 8, 2025 at 3:18 PM
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I already have everything I need...
I've created a "Me" preset for hyper-personalized AI responses in Kerlig.com – just a few paragraphs about who I am, what I do, my plans, and goals.
September 6, 2025 at 10:40 AM
I've created a "Me" preset for hyper-personalized AI responses in Kerlig.com – just a few paragraphs about who I am, what I do, my plans, and goals.
How do you sharpen your skills in a new field?
Here is my example:
I built a free webhook tester, Webhook.Cool, that now runs 100% on autopilot and has just crossed 25M requests, with traffic from Google only growing!
It was a fun little exercise that taught me about:
Here is my example:
I built a free webhook tester, Webhook.Cool, that now runs 100% on autopilot and has just crossed 25M requests, with traffic from Google only growing!
It was a fun little exercise that taught me about:
September 6, 2025 at 10:04 AM
How do you sharpen your skills in a new field?
Here is my example:
I built a free webhook tester, Webhook.Cool, that now runs 100% on autopilot and has just crossed 25M requests, with traffic from Google only growing!
It was a fun little exercise that taught me about:
Here is my example:
I built a free webhook tester, Webhook.Cool, that now runs 100% on autopilot and has just crossed 25M requests, with traffic from Google only growing!
It was a fun little exercise that taught me about:
How Kerlig summarizes websites? I share the secret sauce:
September 2, 2025 at 8:02 AM
How Kerlig summarizes websites? I share the secret sauce:
weekend project:
Upgrade 12GB Postgres DB (Docker) from version 12 to 17 → Done ✅
I thought I'd write a blog post about it, but I checked the search volume and it seems I'm a rare individual who ever searches for that, so no.
Upgrade 12GB Postgres DB (Docker) from version 12 to 17 → Done ✅
I thought I'd write a blog post about it, but I checked the search volume and it seems I'm a rare individual who ever searches for that, so no.
August 30, 2025 at 6:55 PM
weekend project:
Upgrade 12GB Postgres DB (Docker) from version 12 to 17 → Done ✅
I thought I'd write a blog post about it, but I checked the search volume and it seems I'm a rare individual who ever searches for that, so no.
Upgrade 12GB Postgres DB (Docker) from version 12 to 17 → Done ✅
I thought I'd write a blog post about it, but I checked the search volume and it seems I'm a rare individual who ever searches for that, so no.
The thing about goals that nobody will tell you about:
August 29, 2025 at 8:04 PM
The thing about goals that nobody will tell you about:
Working on a landing page for A/B testing next week, with:
- Stronger social proof
- More emphasis on features
- Stripe instead of Lemon Squeezy
- Better design craft overall
- Stronger social proof
- More emphasis on features
- Stripe instead of Lemon Squeezy
- Better design craft overall
June 14, 2025 at 10:28 AM
Working on a landing page for A/B testing next week, with:
- Stronger social proof
- More emphasis on features
- Stripe instead of Lemon Squeezy
- Better design craft overall
- Stronger social proof
- More emphasis on features
- Stripe instead of Lemon Squeezy
- Better design craft overall
New article on the blog, enjoy ✌️
June 13, 2025 at 9:14 AM
New article on the blog, enjoy ✌️
Finally added Custom Actions to the Help section in Kerlig,
using JavaScript in prompts is pretty cool! 👇
using JavaScript in prompts is pretty cool! 👇
May 30, 2025 at 3:01 PM
Finally added Custom Actions to the Help section in Kerlig,
using JavaScript in prompts is pretty cool! 👇
using JavaScript in prompts is pretty cool! 👇