Matt Wonlaw @tantaman Twitter profile

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Matt Wonlaw

3 months

My 4th appearance on a podcast! I'm becoming a better guest (interviewee?) each time, which means this one is the best one :) This time we cover colocated queries, materialized views, sqlite & crdts.

localfirst.fm Podcast

@localfirstfm

3 months

Episode #10 is out. Matt Wonlaw ( @tantaman ) on building his own local-first tools (cr-sqlite, Materialite) and comparing syncing mechanisms.

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Matt Wonlaw

@tantaman

5 months

tfw appeasing the type checker is more work than writing the actual code.

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Matt Wonlaw

@tantaman

2 years

I never thought cross-device sync and multiplayer could be sooooo easy. With CRDTs on SQLite I just declare which tables are synced and voila, my app is multiplayer.

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Matt Wonlaw

@tantaman

1 year

One of the things I'm most excited for is partnering with the LibSQL folks to create a custom syntax for defining tables which are backed by CRDTs! LibSQL is truly getting SQLite ready for the coming decades --

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Matt Wonlaw

@tantaman

5 months

Found a hornets nest on tech twitter. Here's some TypeScript types from Prisma:

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Matt Wonlaw

@tantaman

1 year

Interested (or know someone interested) in databases? Conflict-free data types? p2p? Looking for help on - ~130 companies signed up for the beta release - $16,000 in paid sponsorships over the last 6 months - 1.2k github stars - Front page HN 3x

GitHub - vlcn-io/cr-sqlite: Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite

Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite - vlcn-io/cr-sqlite

github.com

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Matt Wonlaw

@tantaman

1 year

"Most databases were built when data was static and queries were dynamic. For applications, most queries are static and the data is dynamic" - @matthew_linkous I never thought about it this way before but this is spot on.

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Matt Wonlaw

@tantaman

2 years

CRDT extension successfully compiled and running in the new official SQLite WASM. Adios absurd-sql and sql.js

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Matt Wonlaw

@tantaman

11 months

Working on a post but I present a React table of 2 million rows, dynamically filtered in real time. tldr: the data structure backing the table is maintained via differential dataflow so we only need to process the single row that changed rather than the entire set when filtering

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Matt Wonlaw

@tantaman

1 year

A little talk on using SQLite as a Collaborative & Multiplayer Application File Format

SQLite as a Collaborative & Multiplayer Application File Format

Using SQLite to save state locally? How about turning it into a collaborative and multiplayer database?https://vlcn.io/https://github.com/vlcn-io/cr-sqliteRe...

www.youtube.com

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Matt Wonlaw

@tantaman

5 months

quite worth it for the perfect auto-complete. Even prevents you from selecting ambiguous fields.

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Matt Wonlaw

@tantaman

1 year

I was blown away by @aboodman 's talk and the Replicache model so I spent the last day experimenting with a variation on the idea: "Creating CRDTs without specialized knowledge"

A Framework for Convergence: Creating CRDTs Without Specialized Knowledge – vlcn.io

What if I told you anyone can create a new CRDT? That you can do this without any special knowledge of distributed systems?

vlcn.io

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Matt Wonlaw

@tantaman

2 years

A Gentle? Introduction to CRDTs

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Matt Wonlaw

@tantaman

11 months

This confluence of things: - Event sourcing - CRDTs & Causal Graphs - Incremental View Maintenance is going to unlock some stellar new infrastructure. 1. Event source your entire app. 2. Incrementally maintain app state as a view of events. 3. Rebase events for multiplayer.

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Matt Wonlaw

@tantaman

2 years

CRDTs -- design overview of conflict free sqlite

tantaman/conflict-free-sqlite - overview 1

https://github.com/tantaman/conflict-free-sqlite

www.loom.com

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Matt Wonlaw

@tantaman

8 months

Would anyone believe me if I said I can get IndexedDB to read and write faster than a fully in-memory SQLite DB in the browser?

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Matt Wonlaw

@tantaman

1 year

I've never been so excited to publish new documentation. Just another day or two of writing!

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Matt Wonlaw

@tantaman

7 months

Round tripping the server each time. Imagine if this was local first 😃

Guillermo Rauch

@rauchg

7 months

Next.js and React have never been easier, and they've also never been harder 🧵 Here's the universal 'minimum viable app', a TODO list, implemented with the latest features in 45LOC

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Matt Wonlaw

@tantaman

2 years

This is the happiest day of my life! Well, definitely up there. wa-sqlite is now MIT licensed!

GitHub - rhashimoto/wa-sqlite: WebAssembly SQLite with support for browser storage extensions

WebAssembly SQLite with support for browser storage extensions - rhashimoto/wa-sqlite

github.com

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Matt Wonlaw

@tantaman

5 months

What a clever way to automatically run a destructor when a variable goes out of scope in JavaScript. A generator that yields and has a `finally` block. 🤯

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Matt Wonlaw

@tantaman

1 year

I realize I never really talk about the developer experience of having SQLite in the browser + sync. Working on a series of 10 minute videos to cover this. Part 1 Setting up SQLite in the browser: solving persistence, shared state & cross-tab sync:

Vulcan Starter Part 1: creating a new project, opening a local...

Note: no need to use the `next` channel for packages as done in this video. The stable release has all demonstrated features.---In this video we set up a new...

www.youtube.com

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Matt Wonlaw

@tantaman

3 months

In case anyone needs it - convert your PG database to a SQLite database: Also emits the PG WAL LSN so you can logically replicate to SQLite after initial import.

GitHub - tantaman/pg2sqlite: Convert a Postgres DB to a SQLite DB. Reports metadata to replicate...

Convert a Postgres DB to a SQLite DB. Reports metadata to replicate all future changes to SQLite. - tantaman/pg2sqlite

github.com

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Matt Wonlaw

@tantaman

1 year

is an amazing piece of work in terms of improving the reactivity story for SQLite.

GitHub - groue/GRDB.swift: A toolkit for SQLite databases, with a focus on application development

A toolkit for SQLite databases, with a focus on application development - groue/GRDB.swift

github.com

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Matt Wonlaw

@tantaman

8 months

I'll be a bit tied up for a while. New addition to the household.

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Matt Wonlaw

@tantaman

1 year

oh sqlite...

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Matt Wonlaw

@tantaman

1 year

I was accepted to give a talk about & local-first software at #DWebCamp2023 ! 🎉 See you there! @GetDWeb

GitHub - vlcn-io/cr-sqlite: Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite

Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite - vlcn-io/cr-sqlite

github.com

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Matt Wonlaw

@tantaman

11 months

So many people in the crdt & data sync space now. Feels like it is time for me to move on to the next frontier of problems.

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Matt Wonlaw

@tantaman

1 year

Listened to a number of talks and podcasts recently where the guests say that they don't need CRDTs b/c they're "too complex" but then go on to explain their custom solution which is... a CRDT 😅 Maybe this means I shouldn't mention CRDTs to some audiences?

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Matt Wonlaw

@tantaman

1 year

Almost have the entire SQLite dialect covered for type generation. Preview of joins & sub-selects. Builtin functions, conditionals, with clauses, etc. supported as well! Next up: syntax highlighting and intellisense Pairing with TreeSQL is going be 🔥

Johannes Schickling

@schickling

2 years

In collaboration with SkipLabs, Riffle and @tantaman , we sketched out a simple SQL query extension for GraphQL-like nested query results. 👀 It's already really nice to use and will allow me to simplify my application (e.g. by removing GraphQL on top of SQLite).

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Matt Wonlaw

@tantaman

3 months

Can't think of a more ideal place to work and exciting set of problems to work on. Happy to be a part of the team.

Aaron Boodman

@aboodman

3 months

Beyond excited to share that Matt Wonlaw (aka @tantaman ) has joined @rocicorp as our seventh partner. Matt is well-known in the local-first community for his work on and related projects, and I'm delighted he has chosen to join forces with us. We've

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Matt Wonlaw

@tantaman

1 year

TS <-> SQL Integration becoming real. Next up: generating types for `SELECT`.

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Matt Wonlaw

@tantaman

3 years

@markdalgleish

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Matt Wonlaw

@tantaman

1 year

Not having to ever think about cross-tab sync again is enough to make me pay for this if it wasn't open source.

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Matt Wonlaw

@tantaman

11 months

I've got differential dataflow implemented in JS. What should I do with it?

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Matt Wonlaw

@tantaman

9 months

Been pretty silent for a while. That's because useQuery(...), while a great dev experience, has scaling problems. So I'm scaling `useQuery` style hooks to 60fps response time when working with millions of items and keeping those queries up to date as data changes.

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Matt Wonlaw

@tantaman

1 year

Dependency tracking for TypedSQL! Modifying a schema will go update the return types of queries using that schema.

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Matt Wonlaw

@tantaman

6 months

@kentcdodds @joeflateau Rust has a ? operator which will automatically return an error if one is encountered. Eg: ‘()?’. This is pretty close to exception ergonomics but typed and thus checked at compile time.

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Matt Wonlaw

@tantaman

9 months

Seeing my libraries show up in other local-first & dist sys infra 🤩

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Matt Wonlaw

@tantaman

1 year

I used to think forking sqlite (e.g., @libsqlhq ) was crazy but I'm on board now. While SQLite is great, I just don't think it is ready for the demands of the coming years. Just one tiny tiny slice of the mounting problems --

[POC][sqlite] CRSQLite integration by alanjhughes · Pull Request #23728 · expo/expo

Why Completes ENG-8809 Investigate possibility of using crsqlite in expo-sqlite which allows database syncing between clients. How Added the crsqlite extension as a framework and provided an event...

github.com

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Matt Wonlaw

@tantaman

7 months

It's been 1 year + 2 days since got started. My #LocalFirst journey started way back in 2012 with A presentation editor that ran entirely locally in the browser. Its remote storage solution at the time was

Local-First Software

A fresh way to think about building web applications.

localfirstweb.dev

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Matt Wonlaw

@tantaman

2 years

The obligatory TodoMVC app. This time collaborative and replicated p2p via CRDTs in SQLite. Still a bunch of bugs, docs & packaging to clean up but sooo close to a stable release. The client code/interface is clean 🧽

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Matt Wonlaw

@tantaman

3 months

Instant and jank free ui is hard to pull off. It’s why we’re building

Zero

Zero: Your Web App but Good

zerosync.dev

Adam Rackis

@AdamRackis

3 months

Oh my fucking god they’re not optimistically leaving the dropped appointment in place? Just reverting and waiting for the server to send new content down?

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Matt Wonlaw

@tantaman

8 months

@yishan Or are those just the intellects that we remember? Bertrand Russel, Feynman, Milton Friedman were pretty well adjusted?

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Matt Wonlaw

@tantaman

11 months

An alternate approach to syncing SQLite DBs -- Similar to this idea but simplified by going through a central server.

A Framework for Convergence: Creating CRDTs Without Specialized Knowledge – vlcn.io

What if I told you anyone can create a new CRDT? That you can do this without any special knowledge of distributed systems?

vlcn.io

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Matt Wonlaw

@tantaman

5 months

Nice to be working with a team again. I forgot how much you learn just by watching other people operate.

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Matt Wonlaw

@tantaman

1 year

> we're approaching 600 nodes and ~40K changes per second Exciting to see my work deployed into production but always makes me nervous 😅

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Matt Wonlaw

@tantaman

3 months

@kyleshevlin This is the SQL you're looking for. No need for all that code.

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Matt Wonlaw

@tantaman

1 year

Interesting realization that if you're syncing CRDTs through a central server you can apply whatever sort of validation logic you want on the server to preserve constraints. The validation logic just needs to write fixes as a new database version to sync back to clients.

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Matt Wonlaw

@tantaman

11 months

React has graduated to PHP status. Everyone shits on it but it runs the web.

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Matt Wonlaw

@tantaman

1 year

In the refinement phase of cr-sqlite - - decreasing crdt metadata size by 5x - improving crr creation syntax - adding support for resurrecting deleted items - adding list CRDTs to the DB so you can have collaborative text w/o yjs or automerge - improving schema migrations

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Matt Wonlaw

@tantaman

1 year

@VicVijayakumar I guess Netflix includes RSUs in their calculation, the others are just base pay?

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Matt Wonlaw

@tantaman

1 year

Spent a week optimizing `useQuery` to get hundreds of concurrent SQLite queries to return in a single frame in the browser. And now realizing that implementing a fully reactive SQL layer actually isn't that far out of reach. ty &

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Matt Wonlaw

@tantaman

2 years

@jmhodges Facebook handles most of these problems by converting all queries to persisted queries at compile time. That allows you to know exactly what queries can be executed and to what depth and so on. Authz is handled at the individual node level via fwrks like

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Matt Wonlaw

@tantaman

1 year

Big release today. Little did I know the cr-sqlite sync layer previously didn't work in `Chrome for Android` 🫠It does now! Thanks to everyone who provided feedback and reported bugs!

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Matt Wonlaw

@tantaman

1 year

@swlkr @wollantine You trolling or serious?

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Matt Wonlaw

@tantaman

1 year

This is 100% the reason why I'm working on The amount of work the linear team had to do to get sync working well is crazy.

Scaling the Linear Sync Engine

Sign up to Linear to see the sync engine in action: https://linear.appWe are hiring: https://linear.app/careersWatch the previous talk here: https://www.yout...

www.youtube.com

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Matt Wonlaw

@tantaman

5 months

And Drizzle --

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Matt Wonlaw

@tantaman

1 year

@maccaw > However I still believe that for many production use-cases you want the server as a ultimate source of truth. 💯 - Allowing servers to overrule clients - Multi-tenancy Are the two next big things for us to get done in cr-sqlite.

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Matt Wonlaw

@tantaman

5 months

@ssalbdivad Yes, that is true. I'm explicitly opting into this so I can provide a rich API for users. `appease` was a poor choice of phrase.

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Matt Wonlaw

@tantaman

10 months

Putting together some benchmarks and examples for Materialite (that's what I'm calling this incremental view maintenance in JS library) -- I always underestimate how long it takes to get something ready for public consumption 🤪 Just a few more weeks?

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Matt Wonlaw

@tantaman

1 year

Spent the am building reactive code cells that can depend on one another for the new documentation site. Like ObservableHQ but I didn't want to include their notebook interface.

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Matt Wonlaw

@tantaman

1 year

So who is going to write about how local-first can be a progressive enhancement? I know this sounds like a contradiction in terms.

Ryan Florence

@ryanflorence

1 year

There are two ways that I love to build web apps: Server First and Local First. 1. Server First (Remix today). HTTP+HTML are the base API, assume a connection, or talk to service workers as if you're talking to a server. This has the potential for very fast page loads, "land

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Matt Wonlaw

@tantaman

1 year

Looking forward to doing some TinyBase explorations backed by SQLite this week.

James Pearce

@jamespearce

1 year

Could be a big week for TinyBase. I'm pretty excited about SQLite & CRDT synchronization in v4.0 - nearly there! I just put up a fun TinyBase version of @tantaman 's awesome cr-sqlite demo to give you an idea. Let's go!

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Matt Wonlaw

@tantaman

5 months

And Effect-TS

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Matt Wonlaw

@tantaman

3 months

Choose three plus Zero! Fully query driven sync. Any db on the backend. 🔥

Local-First Conf

@localfirstconf

3 months

Great talk by @aboodman of @rocicorp where he introduced Zero, their new hybrid query sync engine that searches the local cache first before falling back to the server for non-local data.

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Matt Wonlaw

@tantaman

2 years

Landed on a nice API for CRDTs & Sync in SQLite --

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Matt Wonlaw

@tantaman

6 months

Notion and Slack have so many rough edges in terms of UX. - Code blocks that become inescapable - Inconsistent shift+enter behavior - Lists responding to delete incorrectly when things like mentions are in them vs Obsidian & Discord where everything works as expected.

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Matt Wonlaw

@tantaman

2 years

@captbaritone Yeah, they're railroad diagrams and fairly common in the compiler space. The JSON spec uses them too: and a library to generate them if you're interested --

GitHub - tabatkins/railroad-diagrams: :steam_locomotive: A small JS+SVG library for drawing...

:steam_locomotive: A small JS+SVG library for drawing railroad syntax diagrams, like on JSON.org. Now with a Python port! - tabatkins/railroad-diagrams

github.com

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Matt Wonlaw

@tantaman

2 years

Haven't used Synergy since high school but coming back to it, it is pretty amazing. Can move my mouse and copy-paste between all my machines as if they were a single machine.

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Matt Wonlaw

@tantaman

1 year

The bright side of landing a perf regression is taking time to add more perf tests in the post-mortem and finding a 50x perf improvement. Pulling change sets from cr-sqlite will be 50x faster in the next release 🚀

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Matt Wonlaw

@tantaman

1 year

Not sure how valuable it is but getting React and all the things running the browser with no build steps was fun.

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Matt Wonlaw

@tantaman

10 months

@rauchg ◆ Cassandra ◆ Hive ◆ RocksDB ◆ Lexical ◆ Watchman ◆ Sapling ◆ Hermes ◆ Thrift 🤪

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Matt Wonlaw

@tantaman

2 years

@pvh All my intuition points to the opposite of this quote being true. - Devices have tons of compute and storage waiting to be used - Cloud costs are crazy - Privacy matters to people - Given how many devices people have, data actually lives longer when local and replicated to peers

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Matt Wonlaw

@tantaman

2 years

Cool to see projects being built on cr-sqlite 🎉

GitHub - Azarattum/CRStore: Conflict-free replicated store.

Conflict-free replicated store. Contribute to Azarattum/CRStore development by creating an account on GitHub.

github.com

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Matt Wonlaw

@tantaman

8 months

@brian_lovin Just let my apps interoperate. I don’t want ten calendar, email, doc, sheet apps.

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Matt Wonlaw

@tantaman

11 months

Do any databases have direct bindings into a host language that, rather than creating SQL, creates the query program directly? E.g., `({...}).where(...)` would not have to go to the SQL step and would go directly to a compiled statement.

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Matt Wonlaw

@tantaman

1 year

On the debate between raw SQL & ORMs, I find myself flip-flopping over the years. Is there a final answer at the end of the curve? Or just an unsatisfying "it depends"?

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Matt Wonlaw

@tantaman

3 months

If you've been wondering what I've been working instead of cr-sqlite the last several months, tune in to the talk!

Aaron Boodman

@aboodman

3 months

On my way to @localfirstconf . Really excited to talk about taking sync mainstream: Thank you very much to @schickling for organizing and the endless energy to bootstrap this community. @rocicorp is proud to sponsor, and looking forward to many more

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Matt Wonlaw

@tantaman

8 months

If we made houses like software: we'd have proprietary electrical sockets, our homes would only work with appliances made by the manufacturer of the home, we'd be charged a fee for exchanging money in the house.

Matt Wonlaw

@tantaman

8 months

@brian_lovin Just let my apps interoperate. I don’t want ten calendar, email, doc, sheet apps.

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Matt Wonlaw

@tantaman

2 years

@_Qwein_ It's a respect thing. If they respect you they take your criticism as being as valid as their own.

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Matt Wonlaw

@tantaman

2 years

There are so many backend as a service companies because it’s the easiest problem to solve that doesn’t actually have a solution.

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Matt Wonlaw

@tantaman

5 months

Type-level programming melted tech twitter's brains. Not because the programs were difficult but because they look different. Type-level programming 101 by analogy to JS constructs.

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Matt Wonlaw

@tantaman

2 years

Noodling on replicating a subset of the CRDTs stored in a database --

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Matt Wonlaw

@tantaman

7 months

Next is going to sink react. That and react worrying more about concurrent mode than improving perf with static analysis and a compiler.

dax

@thdxr

7 months

you’re all bitching about react when your beef is with next

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Matt Wonlaw

@tantaman

4 months

A nice property of a query language where every query is a subscription is that you can globally optimize across all queries. Multiple queries doing the same join? Share it between all queries. One query is a more constrained version of another? Re-use the first query's output.

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Matt Wonlaw

@tantaman

1 year

I find, now that my projects have traction, I'm moving at a glacial pace :( - Messages to follow up on - Integrations to consider - Design input to provide - Meetings with interested contributors - Job offers to consider Is muting everything and grinding a valid option?

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Matt Wonlaw

@tantaman

2 years

@enlightenedcoop lots of repliers are misunderstanding how intention is used here. They’re reading it as “good intentions” rather than being intentional and crafting one’s life like a work of art. Fascinating.

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Matt Wonlaw

@tantaman

1 year

The biggest benefit of migrating a project from C to Rust is people actually starting to contribute. The second is not spending an inordinate amount of time reviewing code for memory issues. And lastly, being able to make large changes with confidence.

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Matt Wonlaw

@tantaman

2 years

Nearing the v1 release of conflict-free sqlite!

GitHub - vlcn-io/cr-sqlite: Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite

Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite - vlcn-io/cr-sqlite

github.com

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Matt Wonlaw

@tantaman

4 months

Print books have a serendipity that I often don't experience in the digital world. Stuck on a problem, opening a massive book and somehow landing on the exact page I need.

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Matt Wonlaw

@tantaman

1 year

Getting tired of seeing so many query builders trying to solve the TS integration problem while introducing their own problems. Did you know SQLite lets you encode your own type hints into create table definitions? We can even make TypeScript aware of these w/o a query builder.

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Matt Wonlaw

@tantaman

5 months

And Kysely

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Matt Wonlaw

@tantaman

2 years

So the official WASM build for SQLite is still rather rough. Mainly due to OPFS's coarse grained file locks. Back to wa-sqlite and indexeddb-vfs for the time being.

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Matt Wonlaw

@tantaman

2 years

@kriswuollett @jmhodges more or less. The upside is you can ship quickly and then optimize when there's actual problems. Of course there should still be _some_ up-front thinking in terms of expected query patterns and modeling the data in a way to serve those kinds of queries.

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Matt Wonlaw

@tantaman

3 months

💯. Transactions, mvcc, rollback, persistence, queries over objects should all exist in your language.

Local-First Conf

@localfirstconf

3 months

"Database features should be language features" Alexander Stigsen from @realm shares his insights into how with local-first you want to bland the gap between the database and the language.

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Matt Wonlaw

@tantaman

10 months

💯. Just make a modular monolith and let automation figure out deployment details. E.g., automatically splitting pieces that don’t talk (or barely talk) into separate deployments.

Kelsey Hightower

@kelseyhightower

10 months

Towards Modern Development of Cloud Applications "microservices conflate logical boundaries (how code is written) with physical boundaries (how code is deployed)." "we propose a different programming methodology" "Our implementation reduces application latency by up to 15x and

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Matt Wonlaw

@tantaman

1 year

The last 5 years of React “improvements” were spent solving problems created by React in the first place. 🌶️🌶️

Theo - t3.gg

@t3dotgg

1 year

Quote tweet this with your spiciest web dev take

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Matt Wonlaw

@tantaman

11 months

I'm excited about pulling in the more complicated operations () and using differential dataflow to maintain the views for an application that is entirely event sourced. Having a fully event-source app unlocks new things --

A Framework for Convergence: Creating CRDTs Without Specialized Knowledge – vlcn.io

What if I told you anyone can create a new CRDT? That you can do this without any special knowledge of distributed systems?

vlcn.io

Matt Wonlaw

@tantaman

11 months

I've got differential dataflow implemented in JS. What should I do with it?

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Matt Wonlaw

@tantaman

2 years

@DoomChild2 @Grady_Booch mono vs many is an incidental detail. You want, regardless of repo structure: - atomic commits across _all_ your code - atomic deployments based on a single sha - ability to bisect the entire codebase to automatically find bugs Monorepos are the only tool for this currently.

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Matt Wonlaw

@tantaman

2 years

This is just full of gems. I've found my kindred spirit? @CoderHi Using SQLite as your reactive data store and single source of truth ~36 min in Also eschewing ORMs and doing everything via store procedures ❤️

Facebook Messenger Engineering with Mohsen Agsen - Software Engineering Daily

Facebook Messenger is a chat application that millions of people use every day to talk to each other. Over time, Messenger has grown to include group chats, video chats, animations, facial filters,...

softwareengineeringdaily.com

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