iiinova — where your digital self keeps evolving

Johannes Schickling @schickling.dev · 01/08/2026

I've been using my custom CRM for a few months now, and it's been working really well for me. The key unlock is to let agents automatically maintain, so data never goes stale again.

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Johannes Schickling @schickling.dev · 01/08/2026

I finally built my own self-driving, personal CRM. After many failed attempts and trying a lot different tools/products, I finally ended up with a system/approach I like built on top of Notion. The best part: It auto-updates, so data never goes stale.

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Johannes Schickling @schickling.dev · 08/10/2025

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!✌️

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Johannes Schickling @schickling.dev · 29/05/2025

Very excited to announce that I'll partner with @redwoodjs.com over the coming months to improve Cloudflare worker support for @livestore.dev

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Johannes Schickling @schickling.dev · 01/05/2025

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".

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Johannes Schickling @schickling.dev · 14/04/2025

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.

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Johannes Schickling @schickling.dev · 11/04/2025

I'm really happy with my M1 Max (32gb RAM) overall but man, Cursor is so memory hungry...

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Johannes Schickling @schickling.dev · 09/04/2025

Once you hit an a `shouldNeverHappen`, you automatically can debug interactively.

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Johannes Schickling @schickling.dev · 09/04/2025

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.

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Johannes Schickling @schickling.dev · 05/04/2025

Highly recommend checking out this talk by John De Goes from last years Effect conference. www.youtube.com/watch?v=Ei6V...

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Johannes Schickling @schickling.dev · 01/04/2025

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.

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Johannes Schickling @schickling.dev · 26/03/2025

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.)

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Johannes Schickling @schickling.dev · 18/01/2025

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:

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Johannes Schickling @schickling.dev · 16/01/2025

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.

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Johannes Schickling @schickling.dev · 15/01/2025

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.

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Johannes Schickling @schickling.dev · 04/01/2025

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!

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Johannes Schickling @schickling.dev · 17/12/2024

TIL (and painful reminder): You need to close WebSocket connections with a code for a Node process/thread to properly exit.

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Johannes Schickling @schickling.dev · 08/12/2024

Combined with automatic Otel tracing this is a real cheat code. Love it when tooling "just works".

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Johannes Schickling @schickling.dev · 08/12/2024

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.

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Johannes Schickling @schickling.dev · 24/10/2024

It’s very hard to build reliable offline support for products that are not architected local-first. Very excited to see this effort. 🙌

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Johannes Schickling @schickling.dev · 08/09/2024

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.

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Johannes Schickling @schickling.dev · 06/09/2024

Happy Bandcamp Friday to anyone who celebrates 🎧

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Johannes Schickling @schickling.dev · 27/08/2024

Of CORS this API doesn't set the right headers... 🤦

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Johannes Schickling @schickling.dev · 25/08/2024

Goal for the day: Speed up Overtone boot time by starting web workers concurrently.

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Johannes Schickling @schickling.dev · 23/08/2024

I'm relying a lot on local app-specific metrics to build @overtone_app which helps me understand what's happening. Here for example I'm seeing that while interacting with the Spotify API, I've hit the rate limit. Instead of having to dig through dozens API requests in the…

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Johannes Schickling @schickling.dev · 21/08/2024

Most apps should use a sync engine instead of doing RPC. It's more clear to me now than ever before: This will become the new default for future app development. Gets rid of massive amounts of complexity and empowers frontend developers. @linear is a great example of this.

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Johannes Schickling @schickling.dev · 10/08/2024

Working on simplifying the app data layer with @livestoredev. Having a database on the client you can trust removes >90% of the complexity of most apps with over-complicated API layers.

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Johannes Schickling @schickling.dev · 07/08/2024

Very excited for next week's @localfirstfm episode with @Mappletons 😊 We've talked about home cooked software, the idea of barefoot developers and how AI complements local-first in making end-user programming a reality. Subscribe if you haven't yet! ✔︎

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Johannes Schickling @schickling.dev · 26/06/2024

Phew. Glad I didn’t give in to the urge to build my own presentation tool on top of Figma. Finally! 😅 twitter.com/schickling/status/17953…

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Johannes Schickling @schickling.dev · 12/06/2024

What's harder than "offline-support"? Making sure that apps work well in bad network conditions. I'm using an old school app called "Network Link Conditioner" (which ships as a macOS settings tab) to test and harden my tools and apps for bad connectivity.

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Johannes Schickling @schickling.dev · 10/06/2024

Hard to beat the feeling when reaching 0 TypeScript errors after a massive refactor. 😌 @EffectTS_ giving me the confidence that when it compiles, it works. ✅

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Johannes Schickling @schickling.dev · 14/05/2024

Just recorded this little performance demo of @overtone_app while working on my talk for @localfirstconf. Near-zero query latency enables a magical UX.

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Johannes Schickling @schickling.dev · 13/05/2024

Shipping self-updating PWAs with Vite has never been easier. 🔥

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Johannes Schickling @schickling.dev · 01/04/2024

TFW you're building another query builder

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Johannes Schickling @schickling.dev · 22/03/2024

One of many reasons why apps like Notion should be completely local-first.

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Johannes Schickling @schickling.dev · 08/03/2024

One of the local-first killer features is automatic data syncing. Similarly how React freed developers from manual view rendering/maintenance, local-first sync engines free developers from manually fetching and pushing data. This unlocks global reactive data.

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Johannes Schickling @schickling.dev · 04/03/2024

Really excited about an upcoming @localfirstfm episode with @rsms. Going deep on various topics including software quality, data model tradeoffs & more.

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Johannes Schickling @schickling.dev · 23/02/2024

So excited to have @jdegoes at Effect Days in Vienna sharing how ZIO has inspired Effect.

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Johannes Schickling @schickling.dev · 15/02/2024

Will I go to React jail for this?

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Johannes Schickling @schickling.dev · 29/12/2023

👋 @GitHubNext Copilot keeps dragging down performance in VSC for me making it by far the slowest extension (of the 86) I've installed.

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