Kirill Taran
@lets-p2p.bsky.social
Web3 security researcher and P2P enthusiast.
Doing security audits with @taran.space
Leading the opensource project @ark-builders.dev
Doing security audits with @taran.space
Leading the opensource project @ark-builders.dev
Reposted by Kirill Taran
Client-Server apps still dominate software despite quietly eroding privacy and data ownership. We just refreshed our old but important article about how the Local-First movement tackles these issues:
ark-builders.medium.com/what-is-loca...
ark-builders.medium.com/what-is-loca...
November 30, 2025 at 1:51 PM
Client-Server apps still dominate software despite quietly eroding privacy and data ownership. We just refreshed our old but important article about how the Local-First movement tackles these issues:
ark-builders.medium.com/what-is-loca...
ark-builders.medium.com/what-is-loca...
Reposted by Kirill Taran
LAST CALL to join the competition: github.com/taran-space/...
Register via form: docs.google.com/forms/d/1kSG...
Prizes:
🏆 $1,000
🥈 $600
🥉 $400
Starting at 1PM CET
Lasting 123 hours
Register via form: docs.google.com/forms/d/1kSG...
Prizes:
🏆 $1,000
🥈 $600
🥉 $400
Starting at 1PM CET
Lasting 123 hours
GitHub - taran-space/competition-2025-11-03-zksync-os-crypto: Public Security Competition: cryptographic modules in ZKsync OS
Public Security Competition: cryptographic modules in ZKsync OS - taran-space/competition-2025-11-03-zksync-os-crypto
github.com
November 3, 2025 at 7:03 AM
LAST CALL to join the competition: github.com/taran-space/...
Register via form: docs.google.com/forms/d/1kSG...
Prizes:
🏆 $1,000
🥈 $600
🥉 $400
Starting at 1PM CET
Lasting 123 hours
Register via form: docs.google.com/forms/d/1kSG...
Prizes:
🏆 $1,000
🥈 $600
🥉 $400
Starting at 1PM CET
Lasting 123 hours
See the whole competition protocol, feel free to comment: docs.google.com/document/d/1...
The prize pool for next competition is $2,000
The prize pool for next competition is $2,000
October 30, 2025 at 12:53 PM
See the whole competition protocol, feel free to comment: docs.google.com/document/d/1...
The prize pool for next competition is $2,000
The prize pool for next competition is $2,000
Reposted by Kirill Taran
We’re calling on tech experts to challenge our audit reports and fact-check our articles—helping prevent hacks and uphold top-tier security. Since Web3 security expertise is rare, we'll reward you for your time and skills with bounties from $100 to $500.
Learn more: bit.ly/4o7wLKI
Learn more: bit.ly/4o7wLKI
October 21, 2025 at 4:01 AM
We’re calling on tech experts to challenge our audit reports and fact-check our articles—helping prevent hacks and uphold top-tier security. Since Web3 security expertise is rare, we'll reward you for your time and skills with bounties from $100 to $500.
Learn more: bit.ly/4o7wLKI
Learn more: bit.ly/4o7wLKI
This was a massive two-month audit (not counting a one-month preliminary review) carried out by a team of four auditors — two from our full-time team and two partner experts.
Audit complete: our report for new version of ZKsync is live!
Given a codebase of such complexity, issues were of course found. Matter Labs has already fixed all issues of HIGH and MEDIUM severity👏
See issues and recommendations: github.com/taran-space/...
#ZKsync #ZK #L2 #RustLang
Given a codebase of such complexity, issues were of course found. Matter Labs has already fixed all issues of HIGH and MEDIUM severity👏
See issues and recommendations: github.com/taran-space/...
#ZKsync #ZK #L2 #RustLang
October 15, 2025 at 4:24 AM
This was a massive two-month audit (not counting a one-month preliminary review) carried out by a team of four auditors — two from our full-time team and two partner experts.
That's exactly why at ARK Builders we work on password-less login-free apps without sacrificing sync/backup capabilities.
16 billion passwords leaked through Apple, Google and Facebook. These giants are supposed to be on the edge of privacy and security technologies, but it seems they turn into huge honeypots.
Read on Forbes: www.forbes.com/sites/daveyw...
Read on Forbes: www.forbes.com/sites/daveyw...
16 Billion Apple, Facebook, Google And Other Passwords Leaked — Act Now
Change all your account passwords now — don’t wait: 16 billion credentials are confirmed as having been leaked.
www.forbes.com
June 20, 2025 at 9:21 AM
That's exactly why at ARK Builders we work on password-less login-free apps without sacrificing sync/backup capabilities.
Reposted by Kirill Taran
Tired of trying Code4rena or Sherlock? Join our private competitions program: t.me/taran_space
June 11, 2025 at 9:58 AM
Tired of trying Code4rena or Sherlock? Join our private competitions program: t.me/taran_space
Reposted by Kirill Taran
We've just published our article about XCMP in Polkadot: Security Measures Every Project Should Know
medium.com/@taran-space...
medium.com/@taran-space...
XCMP in Polkadot: Security Measures Every Project Should Know
Have you ever tried to transmit a message from one blockchain to another without employing a ready-made bridge?
medium.com
May 19, 2025 at 10:15 AM
We've just published our article about XCMP in Polkadot: Security Measures Every Project Should Know
medium.com/@taran-space...
medium.com/@taran-space...
Reposted by Kirill Taran
💱 Rate 2.1 has been released 🚀
New features:
- Search currencies by country or name
- Switch input/output currencies during a calculation
- Manage folders and portfolios: rename, reorder, delete
- Full offline support thanks to fallback rates
play.google.com/store/apps/d...
New features:
- Search currencies by country or name
- Switch input/output currencies during a calculation
- Manage folders and portfolios: rename, reorder, delete
- Full offline support thanks to fallback rates
play.google.com/store/apps/d...
Currency Converter - Offline - Apps on Google Play
Money exchange & Crypto currency converter. Exchange rates for 200+ currencies.
play.google.com
May 11, 2025 at 5:00 PM
💱 Rate 2.1 has been released 🚀
New features:
- Search currencies by country or name
- Switch input/output currencies during a calculation
- Manage folders and portfolios: rename, reorder, delete
- Full offline support thanks to fallback rates
play.google.com/store/apps/d...
New features:
- Search currencies by country or name
- Switch input/output currencies during a calculation
- Manage folders and portfolios: rename, reorder, delete
- Full offline support thanks to fallback rates
play.google.com/store/apps/d...
Reposted by Kirill Taran
We're launching our Rate app on ProductHunt right now: www.producthunt.com/posts/ark-ra...
ARK Rate is the offline money exchange calculator for travelers and nomads! Download to be prepared for any layover ✈️
ARK Rate is the offline money exchange calculator for travelers and nomads! Download to be prepared for any layover ✈️
ARK Rate - Offline money exchange calculator for travelers and nomads | Product Hunt
No internet to convert JPY to USD while traveling in Japan, or NGN to USD while on a safari in Africa? No problem! Access the latest exchange rate data anytime, anywhere — with offline support! Travel...
www.producthunt.com
April 22, 2025 at 7:13 AM
We're launching our Rate app on ProductHunt right now: www.producthunt.com/posts/ark-ra...
ARK Rate is the offline money exchange calculator for travelers and nomads! Download to be prepared for any layover ✈️
ARK Rate is the offline money exchange calculator for travelers and nomads! Download to be prepared for any layover ✈️
Reposted by Kirill Taran
Our article about P2P on Reddit: www.reddit.com/r/programmin...
From the programming community on Reddit: The Deceptive Complexity of P2P Connections and the Solution We Found
Explore this post and more from the programming community
www.reddit.com
April 10, 2025 at 9:07 AM
Our article about P2P on Reddit: www.reddit.com/r/programmin...
Reposted by Kirill Taran
March 23, 2025 at 5:13 PM
Reposted by Kirill Taran
Most modern software is network-dependent. No internet, no access.
But real productivity means being able to work anytime, anywhere.
Local-first software ensures:
🚀 Instant access, even offline
🔄 Automatic sync when internet is available
🔒 Data that stays yours
#travel #digitalnomad #remote
But real productivity means being able to work anytime, anywhere.
Local-first software ensures:
🚀 Instant access, even offline
🔄 Automatic sync when internet is available
🔒 Data that stays yours
#travel #digitalnomad #remote
March 17, 2025 at 9:56 AM
Most modern software is network-dependent. No internet, no access.
But real productivity means being able to work anytime, anywhere.
Local-first software ensures:
🚀 Instant access, even offline
🔄 Automatic sync when internet is available
🔒 Data that stays yours
#travel #digitalnomad #remote
But real productivity means being able to work anytime, anywhere.
Local-first software ensures:
🚀 Instant access, even offline
🔄 Automatic sync when internet is available
🔒 Data that stays yours
#travel #digitalnomad #remote
Reposted by Kirill Taran
Modern software feels slower.
Why? Because cloud-based apps make you wait. Click a button, and your request travels thousands of miles before anything happens. Local-first software? Instant. No lag. No spinners. Just speed.
Let’s bring back snappy apps. #LocalFirst #SoftwarePerformance
Why? Because cloud-based apps make you wait. Click a button, and your request travels thousands of miles before anything happens. Local-first software? Instant. No lag. No spinners. Just speed.
Let’s bring back snappy apps. #LocalFirst #SoftwarePerformance
March 14, 2025 at 6:31 AM
Modern software feels slower.
Why? Because cloud-based apps make you wait. Click a button, and your request travels thousands of miles before anything happens. Local-first software? Instant. No lag. No spinners. Just speed.
Let’s bring back snappy apps. #LocalFirst #SoftwarePerformance
Why? Because cloud-based apps make you wait. Click a button, and your request travels thousands of miles before anything happens. Local-first software? Instant. No lag. No spinners. Just speed.
Let’s bring back snappy apps. #LocalFirst #SoftwarePerformance
We do kinda similar thing at @ark-builders.dev but hope to build the framework for native apps using #RustLang, #Tauri, #Kotlin and #SwiftLang. Core transport tech for us is #Iroh
Sync engines enable web apps with:
- instant (< 1ms) interactions
- full-stack reactivity
- dramatically simpler dx
Despite this, sync hasn't taken off because it doesn't generalize to more complex apps.
I'll be speaking about how @zero.rocicorp.dev solves this next week. Come check it out!
- instant (< 1ms) interactions
- full-stack reactivity
- dramatically simpler dx
Despite this, sync hasn't taken off because it doesn't generalize to more complex apps.
I'll be speaking about how @zero.rocicorp.dev solves this next week. Come check it out!
Aaron Boodman @aaronboodman.com will introduce Zero: A Sync Engine for the Whole Web for the final session. The much-anticipated launch from the folks that brought you Replicache.
March 13, 2025 at 12:23 PM
We do kinda similar thing at @ark-builders.dev but hope to build the framework for native apps using #RustLang, #Tauri, #Kotlin and #SwiftLang. Core transport tech for us is #Iroh
Reposted by Kirill Taran
Ever notice how much time you spend trying to make your devices work together? File transfers, note syncing, finding that one photo, why is it all so complicated?
We’re working to make tech simpler, so you can focus on what matters.
#tech #simplesync
We’re working to make tech simpler, so you can focus on what matters.
#tech #simplesync
March 6, 2025 at 6:00 AM
Ever notice how much time you spend trying to make your devices work together? File transfers, note syncing, finding that one photo, why is it all so complicated?
We’re working to make tech simpler, so you can focus on what matters.
#tech #simplesync
We’re working to make tech simpler, so you can focus on what matters.
#tech #simplesync
Reposted by Kirill Taran
why aren't there more apps that use WebDAV, it's so dumb that a simple way to sync any kind of data you want across any device and almost nobody bothers making stuff for it lol
May 6, 2024 at 4:38 PM
why aren't there more apps that use WebDAV, it's so dumb that a simple way to sync any kind of data you want across any device and almost nobody bothers making stuff for it lol
Cannot agree more. github.com/ARK-Builders...
March 3, 2025 at 11:33 AM
Cannot agree more. github.com/ARK-Builders...
A friend told me about similar issue with data in their company:
1. They design high-definition 3D building plans.
2. Models are stored on a shared local network server.
3. Employees log in and exchange filesystem paths.
Obviously, this approach is too slow and error-prone.
1. They design high-definition 3D building plans.
2. Models are stored on a shared local network server.
3. Employees log in and exchange filesystem paths.
Obviously, this approach is too slow and error-prone.
Today is getting off to a slow start. New Macbook pro m4 arrived for setting up files and building supports. Sadly we have to sync every file from our network store to the device to build an index or we can't locate any existing files! 4TB of data gonna be a few hours of staring at a download bar!
March 3, 2025 at 11:18 AM
A friend told me about similar issue with data in their company:
1. They design high-definition 3D building plans.
2. Models are stored on a shared local network server.
3. Employees log in and exchange filesystem paths.
Obviously, this approach is too slow and error-prone.
1. They design high-definition 3D building plans.
2. Models are stored on a shared local network server.
3. Employees log in and exchange filesystem paths.
Obviously, this approach is too slow and error-prone.