Varun Srinivasan @varunsrin Twitter profile

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@OutVoicePay

@skylinestratgy1

@LivRevamped

@ssfweon

@westspalace

@WeMetaAI

@nekoha_kotatsu

Varun Srinivasan

@varunsrin

2 years

"you get .0002% shares over 4y, 90 days to exercise, 409a is still being decided. we're totally 5x more valuable than our last round. no, i can't share our cap table, revenue or outstanding shares." "... no thanks, i'm joining this web3 company instead" "goddamn ponzi schemes"

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Varun Srinivasan

@varunsrin

2 years

my solidity files: 10% actual code, 90% comments rationalizing the horrible, horrible things i'm about to do with the bits to save gas

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Varun Srinivasan

@varunsrin

5 years

After 4 and a half years, today is my last day @coinbase . Very fortunate to have learned from the smartest and kindest folks in crypto through some crazy times in the industry.

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Varun Srinivasan

@varunsrin

26 days

Our plan is to scale Farcaster to 1 million daily users. The network must handle 10,000 transactions per second while staying credibly decentralized. That's the same order of magnitude as Visa.

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Varun Srinivasan

@varunsrin

2 years

Ideas for building sufficiently decentralized social networks

Sufficient Decentralization for Social Networks

A design pattern to reduce centralized control and change incentives in social networks.

www.varunsrinivasan.com

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Varun Srinivasan

@varunsrin

3 months

Speedrun Saturdays! Create a Farcaster frame in 5 minutes with @Replit and @ChatGPTapp

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Varun Srinivasan

@varunsrin

3 months

A quick primer on frames! - Powerful mini-apps in your feed - Helps you reach your users on Farcaster - Built on open standards

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Varun Srinivasan

@varunsrin

6 years

Thanks @philip_pfo and @gburrell_greg for stopping by @coinbase HQ to talk about Full Cycle Developers with our engineering team! Incredible to see how much Netflix's infrastructure has changed over the last 10 years

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Varun Srinivasan

@varunsrin

10 months

ENS usernames are live on @farcaster_xyz ! Here's a peek into how they work with the protocol:

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Varun Srinivasan

@varunsrin

1 month

Scaling Farcaster's Gossip with Bundles FC Hubs are running into scaling issues with libp2p. We're proposing a change to "bundle" messages to fix some of these issues. Link in next tweet

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Varun Srinivasan

@varunsrin

9 months

EIP 7212 seems like a very big deal for onchain ux 👀 You could start using passkeys to operate smart wallets directly if this existed.

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Varun Srinivasan

@varunsrin

2 years

A Better Model for Valuing Startup Equity

Calculating the value of startup equity using an expected value model

www.varunsrinivasan.com

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Varun Srinivasan

@varunsrin

9 months

Farcaster Hubs are now fully permissionless and there are over 30 of them running already! Help us stress test the network by running one today. It takes ~15 mins to set up and ~ 75 mins to get in sync. (details in reply)

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Varun Srinivasan

@varunsrin

2 years

i wonder if they realize how much they sound like people who used to mock them, back when they were the ones making strange new things

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Varun Srinivasan

@varunsrin

8 days

Deltagraphs are a consensus model for decentralizing social networks. Using a combination of blockchains and CRDTs, we’ve scaled Farcaster to hundreds of thousands of users. I wrote a bit about how this works - link in next post.

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Varun Srinivasan

@varunsrin

6 years

Ever wonder how @coinbase safely deploys code that manages billions of dollars of crypto on @awscloud ? Our very own @GrahamJenson just open sourced our pipeline: PS - we're hiring!

GitHub - coinbase/odin: Archived: Odin deployer to AWS for 12 Factor applications.

Archived: Odin deployer to AWS for 12 Factor applications. - coinbase/odin

github.com

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Varun Srinivasan

@varunsrin

1 year

A quick peek at the stack that @warpcast_ and @farcaster_xyz are built on Farcaster is only possible because we can stand on shoulders of OSS giants like IPFS's @libp2p , @paradigm 's Foundry, Facebook's @RocksDB and Google's @grpcio , among many others

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Varun Srinivasan

@varunsrin

3 months

Frame Actions! A new video that dives into how Farcaster frame buttons work, and the security model behind frames.

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Varun Srinivasan

@varunsrin

4 months

Sign in with Farcaster is here! A new standard to log in to any app with a Farcaster account.

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Varun Srinivasan

@varunsrin

6 years

Excited to announce that @NamrataGanatra has joined us @coinbase to lead our Payments team! She brings a ton of experience building global payments at scale, and we're very excited to be building the open financial system together.

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Varun Srinivasan

@varunsrin

2 months

We're redesigning Farcaster's sync for the next 10x. Here's a quick overview of how it works and what's hard about syncing a social network between apps.

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Varun Srinivasan

@varunsrin

7 months

It's alive!

Dan Romero

@dwr

7 months

We're permissionless!

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Varun Srinivasan

@varunsrin

9 months

Ponder is very well designed. Took me ~ 1 hour to stand up a public Graph QL endpoint that lets you query Farcaster contract state.

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Varun Srinivasan

@varunsrin

1 year

If you want to build a decentralized social network, you must solve four hard problems: 1. Identity 2. Authentication 3. Availability 4. Consistency

Farcaster: Introduction

An overview of the four problems that face decentralized social networks.

www.youtube.com

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Varun Srinivasan

@varunsrin

5 years

Things I wish I learned in school: * How to live well - meditation, therapy, mental disorders, drug science * How to live long - science behind eating, sleeping and exercising well * How to get wealth and leverage - investing, coding, selling, writing

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Varun Srinivasan

@varunsrin

5 years

Excellent work from the @coinbase security team who caught some scary reorgs in ETC. The long-tail of PoW chains will find it hard to protect themselves if inducing reorgs becomes financially profitable. PoW space will likely be dominated by a few, large chains.

Coinbase 🛡️

@coinbase

5 years

On 1/5/2019, Coinbase detected a deep chain reorganization of the Ethereum Classic blockchain that included a double spend. In order to protect customer funds, we immediately paused movements of these funds on the ETC blockchain. Read more here:

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Varun Srinivasan

@varunsrin

8 months

Farcaster Hubs now take ~ 3 mins to setup. Once set up you can: - Read 3.8M historical user messages - Stream new messages from users in real time - Write messages and have them show up immediately in Farcaster apps. You could have a Hub running on your laptop in less than…

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Varun Srinivasan

@varunsrin

20 days

Warpcast is opening up new roles on the team. We're looking for staff level people to work on the Warpcast app and Farcaster protocol. Roles include: - Design - Frontend - Backend - ML - Distributed Systems See next tweet for more details and how to apply.

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Varun Srinivasan

@varunsrin

8 months

It's alive!

Dan Romero

@dwr

8 months

Farcaster is now live on OP Mainnet!

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Varun Srinivasan

@varunsrin

26 days

Warpcast is giving $50k to OSS projects that help the Farcaster ecosystem. If your codebase is MIT licensed and used by a Farcaster project, you qualify. The deadline is April 31st, see thread for the link.

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Varun Srinivasan

@varunsrin

4 years

Crypto Moats and How to Build Them:

Crypto Moats

Crypto Moats, how to create them, and how to work around them.

www.varunsrinivasan.com

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Varun Srinivasan

@varunsrin

6 years

Working with @firstround on this piece and thinking through the lessons from the last year of growth at @coinbase was one of the most useful things I've done recently. Need to do more writing and reflecting this year!

First Round

@firstround

6 years

Lessons from @coinbase 's wild ascent: four rules for scaling (ft. @varunsrin , new on @firstround Review)

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Varun Srinivasan

@varunsrin

2 years

If you follow @punk4156 or @CozomoMedici on OpenSea, you may have noticed that they're minting hundreds of flipped punks and apes. But don't go minting any yourself just yet.

4156 - Profile | OpenSea

Check out 4156's NFTs on OpenSea, the largest marketplace for crypto collectibles.

opensea.io

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Varun Srinivasan

@varunsrin

6 years

Big news today! We're launching support for the USDC stablecoin on @coinbase

Coinbase 🛡️

@coinbase

6 years

Coinbase is launching support for the USDC stablecoin. Starting today, Coinbase customers in supported jurisdictions can buy, sell, send, and receive USDC at and in our mobile apps. Learn more here:

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Varun Srinivasan

@varunsrin

1 year

Farcaster has a new home on the web at ! Docs are significantly improved, addressing the #1 pain point developers had with Farcaster

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Varun Srinivasan

@varunsrin

5 years

@coinbase @brian_armstrong @FEhrsam @rwitoff @adrianmacneil @jeremyhenricks @garrytan I’m taking some time off to decompress, help eng leaders and founders and write for a few months. If you want to talk crypto or startups over coffee, my DM’s are open.

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Varun Srinivasan

@varunsrin

1 year

Farcaster mainnet is coming to life!

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Varun Srinivasan

@varunsrin

11 months

Switching to viem shaved off 30 RPC calls / min for all Farcaster Hubs cc @jakemoxey @awkweb

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Varun Srinivasan

@varunsrin

8 months

benchmarked bun on the fc codebase today. it's a typescript turbo monorepo with some rust thrown in, so take that into consideration. for offline package installation with a lockfile, bun beat yarn by ~ 8x. that's crazy fast.

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Varun Srinivasan

@varunsrin

8 months

Want to learn more about how Farcaster v3 works? New docs site is out with all the details and stick figures you'll need. (link in reply)

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Varun Srinivasan

@varunsrin

9 months

Brand new CLI experience for Farcaster Hubs - Checklist for config errors and guides on how to fix - Progress bars for the initial sync Coming soon in the next major release!

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Varun Srinivasan

@varunsrin

3 months

are you distributing on farcaster, anon?

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Varun Srinivasan

@varunsrin

1 year

If you’re curious about how decentralized social apps can be built on @farcaster_xyz , we recorded a series of 5-minute videos that cover the fundamentals

Farcaster Overview

www.youtube.com

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Varun Srinivasan

@varunsrin

2 years

Some exciting news from our team @farcaster_xyz !

Dan Romero

@dwr

2 years

Excited to share an update about @farcaster_xyz !

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Varun Srinivasan

@varunsrin

8 months

Want to contribute to Farcaster? We have a few open issues that are ideal for first time contributors who are familiar with Typescript. (link in thread)

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Varun Srinivasan

@varunsrin

11 months

Users should be able to store more data on the Farcaster network, especially if they're contributing interesting content. @eth_call @cass_on_mars and I wrote a proposal that lets users "rent" more storage from the @farcaster_xyz protocol.

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Varun Srinivasan

@varunsrin

8 months

Live cast of yesterday's consensus workshop by @gakonst in the SBC Farcaster channel. If you're going to SBC and want to join, DM me for an invite

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Varun Srinivasan

@varunsrin

14 days

Any engineering teams out there processing more than 100M background jobs per day? Starting to run into issues with our setup. Looking for ideas on what people typically turn to at this scale.

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Varun Srinivasan

@varunsrin

9 months

Now at 45 Hubs with ~3 million messages synced! Working on making it even easier/faster to setup.

Varun Srinivasan

@varunsrin

9 months

Farcaster Hubs are now fully permissionless and there are over 30 of them running already! Help us stress test the network by running one today. It takes ~15 mins to set up and ~ 75 mins to get in sync. (details in reply)

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Varun Srinivasan

@varunsrin

3 months

No onchain fees to join Farcaster if you're US-based. More to come!

Dan Romero

@dwr

3 months

Starting today, Farcaster sign ups for US-based users are *free*. Scan the QR code to get started:

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Varun Srinivasan

@varunsrin

8 days

Enjoy working on hard React Native problems? Warpcast, our @farcaster_xyz client, has over 50k daily users. We're looking to bring on another staff level RN engineer. If you enjoy building fast, responsive RN apps, DM me. US timezones only. More details in next tweet.

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Varun Srinivasan

@varunsrin

3 years

join us.

Dan Romero

@dwr

3 years

I’m hiring a full-time 1) TypeScript / React engineer and 2) mobile engineer. DMs are open!

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Varun Srinivasan

@varunsrin

18 days

Bundles are now fully rolled out on Farcaster. The number of gossip messages went down significantly, and bandwidth and CPU usage dropped 50% More improvements to follow!

Varun Srinivasan

@varunsrin

1 month

Scaling Farcaster's Gossip with Bundles FC Hubs are running into scaling issues with libp2p. We're proposing a change to "bundle" messages to fix some of these issues. Link in next tweet

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Varun Srinivasan

@varunsrin

8 days

Deltagraphs take the Goldilocks approach — stronger than federation, but lighter than a pure blockchain — which lets us scale while with a great UX for users and developers.

The Goldilocks consensus problem

Using CRDTs and blockchains to build a decentralized social network

www.varunsrinivasan.com

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Varun Srinivasan

@varunsrin

9 months

Farcaster Capybara adds a little 🦀 to speed things up. You can sync the entire network in a little over an hour.

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Varun Srinivasan

@varunsrin

9 months

Onchain Signers A new proposal to move Farcaster signers onchain to dramatically simplify the user experience of dealing with applications and key pairs.

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Varun Srinivasan

@varunsrin

1 year

Farcaster now supports "side channels" with FIP-2 A side channel is a feed outside of the main feed for anything that has a canonical uri (e.g. web page or smart contract) User can post specifically into a side channel and devs can easily create feeds of such posts.

Dan Romero

@dwr

1 year

The Farcaster protocol now supports replies and likes directly for URLs, NFTs or NFT collections. Before this, casts were the only primitives that you could reply or react to. This enables a bunch of additional use cases for developers:

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Varun Srinivasan

@varunsrin

25 days

farcaster runs on dell

daws.eth on farcaster

@DawsonBotsford

25 days

✨Running a social network on $250 hardware. We are SO early w @farcaster_xyz

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Varun Srinivasan

@varunsrin

7 months

Do I know anyone who has experience with in-app purchases on mobile? Interested in the nitty gritty details about refunds, reconciliations and fraud vectors

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Varun Srinivasan

@varunsrin

13 days

Link defragmentation is coming to Farcaster! A new proposal that simplifies managing follows when a user runs out of of storage space. See next tweet for link.

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Varun Srinivasan

@varunsrin

1 year

giving up founder allocation, what a chad play purple dao is one to keep an eye on:

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Varun Srinivasan

@varunsrin

18 days

Farcaster helps you bootstrap your app by filling out user profiles and finding people they know. Easy to pull this data in seconds with @neynarxyz @airstack_xyz or @pinatacloud

Colin Armstrong

@colinarms

18 days

New on @paragraph_xyz : view all collectors of any Paragraph post. - we pull in @farcaster_xyz profiles for each collector - see which collectors are also subscribers - one-click subscribe to anyone Lots more onchain social, discovery & creator growth improvements incoming.

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Varun Srinivasan

@varunsrin

5 years

Looking for a PM to lead Crypto Platform at Coinbase High growth role working with @balajis , @barmstrong , me, crypto engineers and the community. DM or apply if you’re a BUIDLer and an experienced PM who engineers love:

Not found - Coinbase

Coinbase is a secure online platform for buying, selling, transferring, and storing cryptocurrency.

www.coinbase.com

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Varun Srinivasan

@varunsrin

10 months

Farcaster now has a dedicated channel for ethCC If you’re going to be in Paris and want an invite to join, DM me.

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Varun Srinivasan

@varunsrin

26 days

If you have thoughts on our approach, you can reach us on Github or DM me directly.

Scaling Farcaster · farcasterxyz protocol · Discussion #163

Problem Over the last three months, Farcaster grew 16x from 5,000 to 80,000 daily users. Stress on the network has increased proportionally. We’re unlikely to keep up with another 10x in growth. Ea...

github.com

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Varun Srinivasan

@varunsrin

2 years

solidity twitter - how would you build an upgradeable contract today?

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Varun Srinivasan

@varunsrin

4 years

@brettberson directly correlated for founders, investors slightly correlated for pms no correlation for engineers

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Varun Srinivasan

@varunsrin

3 years

. @dwr and i are growing the team 🚀🚀 if interested, click through to the form👇

Dan Romero

@dwr

3 years

Looking to hire a distributed systems engineer and an Ethereum engineer. Vast majority of what you'll be working on will be open source. Apply here:

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Varun Srinivasan

@varunsrin

3 years

if you genuinely believe something broke, you stop all trading. if you want to manipulate the price , you allow one side- trading. robinhood made it crystal clear today that hedge funds are their customers, and retail traders are the product.

Robinhood

@RobinhoodApp

3 years

In light of current market volatility, we are restricting transactions for certain securities to position closing only, including $AMC and $GME. Read more here.

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Varun Srinivasan

@varunsrin

3 months

The best answer to "Why Farcaster?" from @Zeneca "Farcaster has no native token, there is no ponzi, it is just a good product, built by great developers, and used by great developers."

Zeneca 🔮

@Zeneca

3 months

I see a lot of confusion going around about Farcaster, what is it, what is Warpcast, etc. Here's a quick post explaining: In their own words: Farcaster is a sufficiently decentralized social network built on Ethereum. Users can create profiles, post short messages or "casts",…

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Varun Srinivasan

@varunsrin

5 years

Stock option offer letters are insanely complicated to understand. It's one of the hardest things I've had to explain to engineers interviewing at @coinbase , crypto included. Here are the three things that tend to trip people up:

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Varun Srinivasan

@varunsrin

6 years

@jimpo_potamus and I are excited to announce the Coinbase Protocol team! Come work on open source crypto with us:

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Varun Srinivasan

@varunsrin

2 years

come work with us!

Dan Romero

@dwr

2 years

We're up to 7 people at @farcaster_xyz and looking to hire 3 more engineers. Offering >1% equity for each hire. Looking for 5+ years experience, US timezone, interest in building open source software. If you're interested, DM with GitHub or LinkedIn.

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Varun Srinivasan

@varunsrin

26 days

State growth can be controlled by : 1. Optimizing db layout and indexing 2. Condensing message sizes 3. Charging rent for storage on the network

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Varun Srinivasan

@varunsrin

9 months

Coming to @gakonst 's RustxEthereum event? There's now a Farcaster channel for it! (link in thread)

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Varun Srinivasan

@varunsrin

2 years

An articulation of how @dwr and I designing @farcaster_xyz , a new social networking protocol. If you know Solidity well and want to work on this, we're hiring and my DM's are open.

Open Roles | Notion

This page is now at https://warpcast.notion.site/Warpcast-Overview-cf6d3ee0f6574238adc11a5477afc66f?pvs=4

warpcast.notion.site

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Varun Srinivasan

@varunsrin

1 year

My wishlist for the Farcaster ecosystem A good starting point for developers looking to get hands on with Farcaster. As a bonus, many of these ideas are bootstrappable businesses.

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Varun Srinivasan

@varunsrin

8 days

Farcon in Venice looks absolutely stacked. Huge shoutout to all the organizers! RSVP link in reply.

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Varun Srinivasan

@varunsrin

26 days

Running a node should cost < $1000/mo. You should be able to use a provider like AWS to run one, and download the entire state of the network to a single machine.

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Varun Srinivasan

@varunsrin

5 years

@coinbase There are a lot of people to thank, but especially @brian_armstrong , @FEhrsam , @rwitoff , @adrianmacneil and @jeremyhenricks for taking crazy chances on me over the years and @garrytan for convincing me to join.

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Varun Srinivasan

@varunsrin

4 months

Get webhooks when someone talks about you or your company on Farcaster

Manan on Warpcast

If you're running your brand or company on Farcaster, Neynar webhooks can send casts that match a text to any webhook destination. We routed "neynar" matches to a Slack channel & it's been super...

warpcast.com

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Varun Srinivasan

@varunsrin

1 year

i don't think there's a single good reason not to be using @paulmillr 's noble in all typescript projects that need to handle ec stuff v1 was already fast and well designed, and v2 looks fire

GitHub - paulmillr/noble-ed25519: Fastest 4KB JS implementation of ed25519 signatures

Fastest 4KB JS implementation of ed25519 signatures - paulmillr/noble-ed25519

github.com

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Varun Srinivasan

@varunsrin

26 days

A second problem is replication. Hubs are good at fetching data but don't support broad query patterns, which most apps need. The solution is to replicate it to a data store like Postgres. We're working on Shuttle, a system to sync databases to nodes with a delay of < 1s.

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Varun Srinivasan

@varunsrin

1 year

Its hard, if not impossible, to have identities that are decentralized and trustworthy. If ownership is sovereign, what stops someone from registering "cocacola" and holding it forever? A namespace where popular names are squatted isn't useful.

Farcaster: Trustworthy Identities

Explaining the dilemma of trustworthy and decentralized identities

www.youtube.com

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Varun Srinivasan

@varunsrin

2 years

This tricks @opensea and @etherscan into showing them as legitimate "Mint" Events, and unsuspecting users may ape into these fake NFT's. Expect these attacks to become more common, always be careful when buying new NFT's!

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Varun Srinivasan

@varunsrin

26 days

The final boss is state growth. Users create messages which take disk space on nodes. Each node stores a copy of entire network's state. Our goal is to keep nodes under 10TB at 1M users. This keeps hubs very useful to developers and very simple to operate.

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Varun Srinivasan

@varunsrin

11 months

You'll be able to use ENS names on Farcaster in a few weeks!

Farcaster

@farcaster_xyz

11 months

An overview of the recent FIP for making Farcaster Names compliant with @ensdomains

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Varun Srinivasan

@varunsrin

26 days

Our most pressing problem is scaling sync. CRDTs are used to achieve consensus without coordination at a local node (hub). But the changes must be replicated to other hubs quickly. Nodes rely on a three-phase sync process to converge to the same state quickly.

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Varun Srinivasan

@varunsrin

26 days

Each phase needs to get at least an order of magnitude faster. We're exploring: - Bundling gossip messages - Sync over gRPC streams - Faster state diff calculation algorithms

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Varun Srinivasan

@varunsrin

1 year

"designers"

Sirch

@SirchTheWeb

1 year

@warpcast_ has such a sweet & simple onboarding experience. Some designers sweated the details there, and it makes all the difference in the world. Thanks for the invite @dwr !

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Varun Srinivasan

@varunsrin

1 year

Blake3 is very good, we use it extensively in Farcaster

zooko🛡🦓🦓🦓 ⓩ

@zooko

1 year

Reasons to prefer BLAKE3 over SHA256:

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Varun Srinivasan

@varunsrin

3 years

@zhayitong avoid main-projects

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Varun Srinivasan

@varunsrin

25 days

can confirm @_jxom and @awkweb are legendary

Georgios Konstantopoulos

@gakonst

25 days

the shoutout is for @_jxom & @awkweb who built Frog with just a few messages of riffing from "we should build something on Farcaster" and then shipping it with us and doing support for all the users. better together.

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Varun Srinivasan

@varunsrin

9 months

🔴 🤝🟪

binji 🔴

@binji_x

9 months

new op stack channel dropped on Farcaster if you need an invite lmk, can’t give it to all but will offer a few to folks who really want to jam on there 🔴

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Varun Srinivasan

@varunsrin

6 years

Here’s how @brockamiller and @EliHaims helped @coinbase scale by implementing bitcoin protocol improvements like Child Pays For Parent: If you’re interested in solving hard crypto problems, drop me a dm - we’re hiring!

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Varun Srinivasan

@varunsrin

20 days

10 more days to apply for Warpcast retro grants. If you're an OSS projects building for @farcaster_xyz , you qualify. More details in next tweet.

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Varun Srinivasan

@varunsrin

8 months

. @eth_call got us to mainnet a lot faster and with excellently designed contracts 🫡 horse related content was a bit lacking tho, expected more

horsefacts

@eth_call

8 months

That escalated quickly. It's been an honor to work with @varunsrin and the @farcaster_xyz protocol team on their Optimism mainnet migration. Now onward to permissionless signups...

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Varun Srinivasan

@varunsrin

5 years

@iamb @dan_coff I SAID I WAS SORRY FOR THE DSLS

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Varun Srinivasan

@varunsrin

6 years

High Growth handbook by @eladgil is the book I wish I read before 2017 hit @Coinbase . So many valuable lessons for someone trying to scale with a hyper growth company

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Varun Srinivasan

@varunsrin

1 year

Doing a spaces with @jessepollak and @dwr today to talk about all things @BuildOnBase and @farcaster_xyz

Dan Romero

@dwr

1 year

. @varunsrin and I will be talking with @jessepollak tomorrow about @BuildOnBase

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