Johannes Schickling
@schickling.dev
Building a local-first music app overtone.pro with @livestore.dev. Host @localfirst.fm. DX Effect. Founded @prisma.io. schickling.dev
Heading to ViteConf in Amsterdam where I'll speak about "Building native-grade web apps with synced data".
If you're there, come and say hi!✌️
If you're there, come and say hi!✌️
October 8, 2025 at 10:01 AM
Heading to ViteConf in Amsterdam where I'll speak about "Building native-grade web apps with synced data".
If you're there, come and say hi!✌️
If you're there, come and say hi!✌️
Very excited to announce that I'll partner with @redwoodjs.com over the coming months to improve Cloudflare worker support for @livestore.dev
May 29, 2025 at 9:09 AM
Very excited to announce that I'll partner with @redwoodjs.com over the coming months to improve Cloudflare worker support for @livestore.dev
Very excited for next week!
May 21, 2025 at 3:43 PM
Very excited for next week!
I didn't not expect that building the devtools messaging protocol for @livestore.dev would turn out to be one of the most difficult parts to build.
In order to support reliable and efficient messaging (supporting transferables), I ended up building a local networking protocol called "Webmesh".
In order to support reliable and efficient messaging (supporting transferables), I ended up building a local networking protocol called "Webmesh".
May 1, 2025 at 9:07 AM
I didn't not expect that building the devtools messaging protocol for @livestore.dev would turn out to be one of the most difficult parts to build.
In order to support reliable and efficient messaging (supporting transferables), I ended up building a local networking protocol called "Webmesh".
In order to support reliable and efficient messaging (supporting transferables), I ended up building a local networking protocol called "Webmesh".
Event-driven design is highly underutilized. It's the right architectural approach for many systems and applications but often it's too inconvenient to do.
I'm trying to fix that with @livestoredev by making the right thing easy.
I'm trying to fix that with @livestoredev by making the right thing easy.
April 14, 2025 at 8:32 PM
Event-driven design is highly underutilized. It's the right architectural approach for many systems and applications but often it's too inconvenient to do.
I'm trying to fix that with @livestoredev by making the right thing easy.
I'm trying to fix that with @livestoredev by making the right thing easy.
I'm really happy with my M1 Max (32gb RAM) overall but man, Cursor is so memory hungry...
April 11, 2025 at 9:30 AM
I'm really happy with my M1 Max (32gb RAM) overall but man, Cursor is so memory hungry...
Once you hit an a `shouldNeverHappen`, you automatically can debug interactively.
April 9, 2025 at 4:51 PM
Once you hit an a `shouldNeverHappen`, you automatically can debug interactively.
I highly recommend using a helper function like `shouldNeverHappen` instead of throwing errors directly in your code (only applies to defects/panics).
It's an easy way to make your code more readable and improve DX by automatically opening the debugger during dev.
It's an easy way to make your code more readable and improve DX by automatically opening the debugger during dev.
April 9, 2025 at 4:48 PM
I highly recommend using a helper function like `shouldNeverHappen` instead of throwing errors directly in your code (only applies to defects/panics).
It's an easy way to make your code more readable and improve DX by automatically opening the debugger during dev.
It's an easy way to make your code more readable and improve DX by automatically opening the debugger during dev.
Highly recommend checking out this talk by John De Goes from last years Effect conference.
www.youtube.com/watch?v=Ei6V...
www.youtube.com/watch?v=Ei6V...
April 5, 2025 at 11:59 AM
Highly recommend checking out this talk by John De Goes from last years Effect conference.
www.youtube.com/watch?v=Ei6V...
www.youtube.com/watch?v=Ei6V...
I'm very excited to announce that I'll be speaking at @viteconf.org about building native-grade web apps with local-first data.
I'll share lessons learned and what it takes to build high-performance web apps from working on Overtone over the past 4 years.
I'll share lessons learned and what it takes to build high-performance web apps from working on Overtone over the past 4 years.
April 1, 2025 at 1:08 PM
I'm very excited to announce that I'll be speaking at @viteconf.org about building native-grade web apps with local-first data.
I'll share lessons learned and what it takes to build high-performance web apps from working on Overtone over the past 4 years.
I'll share lessons learned and what it takes to build high-performance web apps from working on Overtone over the past 4 years.
Cursor/VSCode tip: I just changed the default view mode to "tree" for VSC/Cursor search results / source control items. (Should have done this years ago.)
March 26, 2025 at 5:32 PM
Cursor/VSCode tip: I just changed the default view mode to "tree" for VSC/Cursor search results / source control items. (Should have done this years ago.)
That's where @effect-ts.bsky.social shines. I'm using it for this particular use case extensively in various projects where the same code is used across web/node/service workers.
Even natively supports transferable objects (i.e. moving memory instead of copying).
Here is an example schema:
Even natively supports transferable objects (i.e. moving memory instead of copying).
Here is an example schema:
January 18, 2025 at 10:16 AM
That's where @effect-ts.bsky.social shines. I'm using it for this particular use case extensively in various projects where the same code is used across web/node/service workers.
Even natively supports transferable objects (i.e. moving memory instead of copying).
Here is an example schema:
Even natively supports transferable objects (i.e. moving memory instead of copying).
Here is an example schema:
Increasingly impressed how Cursor/AI isn't just making me more productive but helps resolve non-trivial bugs with ease.
Yesterday, I was facing a gnarly memory corruption bug in a SQLite WASM build. Cursor with GPT4o one-shotted the solution.
Yesterday, I was facing a gnarly memory corruption bug in a SQLite WASM build. Cursor with GPT4o one-shotted the solution.
January 16, 2025 at 10:02 AM
Increasingly impressed how Cursor/AI isn't just making me more productive but helps resolve non-trivial bugs with ease.
Yesterday, I was facing a gnarly memory corruption bug in a SQLite WASM build. Cursor with GPT4o one-shotted the solution.
Yesterday, I was facing a gnarly memory corruption bug in a SQLite WASM build. Cursor with GPT4o one-shotted the solution.
If it's consoling for you, my day has mostly involved nested pointers in the SQLite C/WASM binding and starring at binary buffers.
Also: Cursor helped me to write a lot of C code which was really fun actually.
Also: Cursor helped me to write a lot of C code which was really fun actually.
January 15, 2025 at 5:55 PM
If it's consoling for you, my day has mostly involved nested pointers in the SQLite C/WASM binding and starring at binary buffers.
Also: Cursor helped me to write a lot of C code which was really fun actually.
Also: Cursor helped me to write a lot of C code which was really fun actually.
I rarely use Blender myself but I greatly appreciate the colossal and continuous effort to develop it as free software. The world needs more of this!
January 4, 2025 at 1:06 PM
I rarely use Blender myself but I greatly appreciate the colossal and continuous effort to develop it as free software. The world needs more of this!
TIL (and painful reminder):
You need to close WebSocket connections with a code for a Node process/thread to properly exit.
You need to close WebSocket connections with a code for a Node process/thread to properly exit.
December 17, 2024 at 6:08 PM
TIL (and painful reminder):
You need to close WebSocket connections with a code for a Node process/thread to properly exit.
You need to close WebSocket connections with a code for a Node process/thread to properly exit.
Combined with automatic Otel tracing this is a real cheat code. Love it when tooling "just works".
December 8, 2024 at 9:57 AM
Combined with automatic Otel tracing this is a real cheat code. Love it when tooling "just works".
Gave property based testing a first try today. Absolutely magical in combination with Effect Schema.
Bonus: The Effect vitest integration provides fast-check support out of the box.
Bonus: The Effect vitest integration provides fast-check support out of the box.
December 8, 2024 at 9:56 AM
Gave property based testing a first try today. Absolutely magical in combination with Effect Schema.
Bonus: The Effect vitest integration provides fast-check support out of the box.
Bonus: The Effect vitest integration provides fast-check support out of the box.
It’s very hard to build reliable offline support for products that are not architected local-first. Very excited to see this effort. 🙌
November 17, 2024 at 1:20 PM
It’s very hard to build reliable offline support for products that are not architected local-first. Very excited to see this effort. 🙌
I'm wearing it as a badge of honor! 🎖️ https://www.youtube.com/watch?v=qHSI5rxTp_Q&lc=Ugy1S3O_cAPtbCB78914AaABAg
November 17, 2024 at 1:20 PM
I'm wearing it as a badge of honor! 🎖️ https://www.youtube.com/watch?v=qHSI5rxTp_Q&lc=Ugy1S3O_cAPtbCB78914AaABAg
git as app sync engine While thinking more about app syncing it occurred to me that git, the sync engine we use on a daily basis could also be used as a data sync system for some "small apps". I want to explore this idea for @livestoredev to sync the eventlog via git.
November 17, 2024 at 1:33 PM
git as app sync engine While thinking more about app syncing it occurred to me that git, the sync engine we use on a daily basis could also be used as a data sync system for some "small apps". I want to explore this idea for @livestoredev to sync the eventlog via git.
Happy Bandcamp Friday to anyone who celebrates 🎧
November 17, 2024 at 1:32 PM
Happy Bandcamp Friday to anyone who celebrates 🎧
Link to blog post and classification table: https://mattweidner.com/2024/06/04/server-architectures.html
November 17, 2024 at 1:32 PM
Link to blog post and classification table: https://mattweidner.com/2024/06/04/server-architectures.html
Of CORS this API doesn't set the right headers... 🤦
November 17, 2024 at 1:32 PM
Of CORS this API doesn't set the right headers... 🤦