Patrick Collins
@PatrickAlphaC
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Co-founder of 🛡️ @cyfrinaudits | 🟪 @soloditofficial | 🦅 @codehawks | 🎓 @cyfrinupdraft Building the Web3 we promised.
Level up Web3
Joined September 2019
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Pinned Tweet
Who here has lost money due to an exposed private key, especially by accidentally sending the key to GitHub/GitLab/Bitbucket?
LM = "I've lost $"
NLM = "I've not lost $"
If you've lost money, could you also put if it was more or less than $5,000 in the comments?
LM: Via pushing toGitHub
39
LM: Exposing 🔑 elsewhere
25
NLM: I encrypt my keys
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NLM: I've been careful
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Coinbase: we gonna IPO
SEC: you good
SEC: jk we suing you
Coinbase: for what?
SEC: not telling you
Coinbase: wtf
SEC: unregistered securities
Coinbase: which ones?
SEC: not telling you
Coinbase: THEN HOW CAN YOU SUE US? USA can you deal with this?
SEC: ok like Ada and
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ITS FINALLY HERE
🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉
The Ultimate, Learn Blockchain Development, Solidity, Full-stack Web3, & Smart Contract Course | Javascript (& Typescript) Edition on
@FreeCodeCamp
!
🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉
Here is everything you'll learn from this course, and more 👇
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ITS FINALLY HERE
🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉
The Ultimate, Learn Blockchain Development, Solidity, AI-Powered Smart Contract Course | Foundry Edition!
🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉🎊🎉
Here is everything you'll learn from this course, and more 👇
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One of the quickest ways to learn anything is to try it.
Smart Contracts:
- I kept writing solidity & vyper
Running validators & nodes:
- I kept running different kinds of nodes
Audits:
- I sat my ass down and screamed at my computer for days until I found bugs
Stay curious
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You can have it both ways.
- Free blockchain developer education.
- The best blockchain developer education.
You don't need to settle for less.
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gm
I hope you're all learning solidity and foundry.
We've got a big year ahead of us.
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I am working on the ultimate, best, most complete full stack web3 free learning course the world has ever seen.
Everything is filmed. I am just editing all the pieces together now.
Delivery date all depends on how fast I can edit.
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I'm going to cry.
This is amazing, huge congrats. I'm so glad you took the initiative to start something totally new, and push all the way!!
Anyone can start in web3. You just need to take the first step.
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It's gotten MUCH worse.
@TornadoCash
Github accounts and codebase has been entirely removed.
This is much worse than just sanctioning a website.
Code is speech, so we are potentially violating the first amendment.
Paging lawyers
@adamdavidlong
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🏋🏻♀️ Sometimes you code, and sometimes you clean.
I would have shaved if I knew it was picture day lol.
Keep coding web3
📸inesonphotography on insta
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SMART CONTRACT SECURITY AND AUDITING FULL COURSE IS NOW OPEN TO EVERYONE ON CYFRIN UPDRAFT
🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊
In just 22 hours, the top web3 experts walk you through 5 increasingly difficult audits to drill security power into you.
Here's what you need to know👇
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🧵 December 31st was my last day as a Chainlink Labs developer advocate.
It was a difficult choice to make.
There are currently 2 main problems in web3 that I think we need more focus:
☑️ 1. Onboarding developers
☑️ 2. Understand the gradient of helpful to malicious web3 code
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All engineers thinking about
#solidity
,
#smartcontract
, and
#blockchain
development.
💚MASSIVE NEWS💚
@freeCodeCamp
has released my course that will teach you EVERYTHING you need to know to become a successful smart contract expert!
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Fuck the prices.
If you're looking at prices daily, weekly, or even monthly, IMO you're doing it wrong.
We are on a journey to financial freedom. The long game is the way to play.
#DeFi
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🐸 I created the world's most unstoppable website using Decentralized Storage.
After T-Cash got banned, I wanted to answer the following:
"How can I make a website as resilient as a smart contract?"
Here is how we did it 👇
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👋 gm 33k devs
If you like:
- web3
- blockchain
- smart contracts
- solidity
- learning everything you need to know about smart contract development in 1 video…
Shoot me a follow and retweet - we don’t want anyone to miss out when it drops.
Weeks not months.
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Disagree and disappointed in this take.
Normally, I like to criticize in private, but I can’t DM Gün. Additionally, after the last two years it’s been killing us to be too quiet about things we think are setting us back.
We all smelt something fishy with FTX.
Let’s address
The people trying to fade memecoins are the same kind of people who were fading pop music in the 60s, calling Banksy a vandal in the 80s, and shittalking rap in the 90s.
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Trivia: Why should you be absolutely terrified when you see this solidity code?
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1/ 📚 Want to learn the EXACT steps you need to take to become a
#blockchain
engineer?
🤝Got you covered! 🤝
It's just 4 steps:
1. Understand Why 🧠
2. Take a Course 🧑🏽🏫
3. Join a Hackathon, Community, and Build 👏
4. Do it! ✅
A thread and article🧵
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Am I reading this right?
A bank in the US is allowed to lend money out without having ANY collateralization.
No wonder bank runs happen. THEY DON'T NEED TO HAVE ANY FUCKING MONEY.
They call us DeFi degenerates???
CAN SOMEONE EXPLAIN TO ME HOW THIS MAKES ANY SENSE.
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🧱 Top sites to visit to learn web3 and smart contracts!
🧑🏾💻 FreeCodeCamp
⛓ Chainlink Docs & Bootcamps
🧟 CryptoZombies
🎓 DappUniversity
🍔 Eat the Blocks
🐸 Patrick Collins YT & Medium
☄️ Chainshot
🥾 Consensys Bootcamp
👨🏿🔬 Moralis Academy & Site
👩🏻🚀 Ethernaut
👇
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You can learn everything to be a solidity and smart contract developer in a little over a day.
Literally.
The Day:
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I had to update my top "10" list for learning smart contracts and solidity... Again.
1. My YouTube (I'm biased)
2. FreeCodeCamp (Biased)
3. Cryptozombies
4. Solidity By Example
5. Alchemy University / Chainshot
6. Consensys Bootcamp
7. Speed Run Ethereum
8. LearnWeb3DAO
👇
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Due to popular demand, we broke down the 27-hour course into 220 YouTube videos.
Now, instead of having to hold your place on the loooong YouTube videos, you can just watch smaller 1 - 20 minute videos!
👇
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Dear Web3 Engineering Hiring Managers:
Having these 5 NFTs (that they themselves minted) in their
@stratosnft
profile, is better than any Udemy certificate on the planet.
Right now, only 2 people have all 5.
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🔥 Today is the one year anniversary of the python web3
@freecodecamp
video.
✨ In the past year, it's been viewed over 2.8M times, making it the number one most watch smart contract developer education video of all time.
Thank you all for being on this incredibly journey.
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🧱 I've been learning about modular blockchains and how they can help smart contract platforms scale - here is what I've learned so far:
1. Blockchains are separated into 4 categories
- Data Availability
- Consensus
- Settlement
- Execution
Chains like ETH are all 4.
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We posting lifting pics yeah?
A quick 320 clean on a Saturday morning.
Happy weekend y’all!
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1/
#Chainlink
, a thread
#Blockchain
allows us to do amazing things, the easiest value add to understand is smart contracts.
In my CS class back in 2013 my professor taught us about
#Bitcoin
and I literally went “that sounds stupid”.
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Dear full-stack web3 developers,
This connect button from web3uikit is everything you've ever wanted.
Sincerely, me
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This is too many of you LOL.
Remember to get some sleep!!!
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There is a reason I work on the
@chainlink
project.
Through all this, the nodes work exactly the same.
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Show up.
Everyday.
If it's hard for you, it's hard for everyone else.
Just keep showing up.
That's where the alpha is.
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Security researchers only want one thing and it's disgusting
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Anyone who got into crypto because of me - what you’re currently seeing isn’t crypto.
In my courses, one of the FIRST thing I talk about is trust minimized agreement and transparency.
The orgs failing now are the old ways of trickery doing theatrics of true web3.
DeFi > CeFi
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Learning web3 and software coding has never been easier!
It's the best course out there... AND it's free!
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CCIP is the ultimate app-building alpha feature.
And yet, no one is using it yet.
Here are my top 5 million dollar
@chainlink
CCIP ideas.
You have 3 months to make one of them before I do.
🧵 👇
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We needed a quick market cleanse to wipe out all the bullshit scams.
Time to build the real shit that will last more than a hot second.
The billion-dollar protocols we know and love today were forged in these markets.
I'm so fucking pumped.
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Happy Halloween smart contract developers & security researchers.
Also, rm
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🧰 All your smart contract security tools are shit
...Or at least, according to a recent research study
After analyzing 516 bugs across 2021-2022, they discovered:
- How good our tools are
- How to categorize web3 bugs
- How to use this knowledge to win $102k in audit contests
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@freeCodeCamp
Starting with the links to the content, then we will go into
🔗 Here's a link to the course.
After 4+ months of pouring every ounce of information into a video, this is where we have arrived - with 30+ hours of pure
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Finally got to meet the man the myth in real life.
@austingriffith
one of the OG (if not THE og) developer advocates of the smart contract space.
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Meme coins are a net negative for web3.
ZachXBT is right.
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🎊We’ve hit 1M views on the 32 hour
@freeCodeCamp
@HardhatHQ
video!!
🤯Between this and the python video, collectively they have 4M views!
🙏Thank you to EVERYONE who has learned from this course, participated in the GitHub, and helped make this a benchmark for web3 education.
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Today is a big win for web3.
Welcome to web3 traditional finance.
We are excited to show you a better world.
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🙏 The .env pledge
⚠️ Too many new developers have exposed their private keys due to .env files being pushed up to github.
🔐 Help me spread this message by taking the pledge with me, and we can help all the new developers out there not get rekt.
👇
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I’m actually crying.
Chainlink is so.... beautiful.
Massive. Just massive.
Off-Chain Reporting is now live on mainnet, marking a major scalability upgrade of Chainlink’s oracle network. OCR reduces on-chain gas costs by up to 90% & enables
#Chainlink
to bring 10x more data on-chain, accelerating
#DeFi
& smart contract innovation.
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For those of you who like
@udemy
, we recently launched our end-to-end solidity course on Udemy!
And Udemy doesn't let you ship a 27-hour course without a price tag :/
So, we set it to the lowest price, and in the first module told people where to find it for free!
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You can now learn:
- Assembly
- Huff
- Formal Verification
- High-Level Wallet/Web3 DevOps
On Cyfrin Updraft, in an outstanding new 13 hours of content.
🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉
Let's give you a taste of what you'll learn in these two new courses:
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I almost gave up becoming a software engineer.
Multiple times.
I was frustrated that people would say:
"oh, you don't already know that?"
or
"Oh, the solution is so simple. It's basically common knowledge."
Now I know to just smile and find the people who don't do that.
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The PayPal stablecoin could have been epic, but it feels rushed.
- Old solc version
- Upgradable contract
- Not gas efficient
We knew it would be centralized so that's ok.
But worst of all, they named it "PyUSD" and didn't use Python or Vyper
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🤔 In solidity, did you know...
As of solidity 0.8.12, you can concatenate strings easily with string.concat instead of abi.encodePacked?
Now you do!
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🔑 Stolen private keys are the number 3 attack vector for DeFi for 2023.
The. Number. Three.
With over ~$137M stolen so far.
Sometimes, it's as simple as accidentally pushing private keys up to GitHub
Fret no more ripped Jesus enthusiasts, you have a solution now
👇
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Imagine being able to send ETH to your friend cross chains without anyone knowing:
- what token
- to whom the tx goes
- from whom
And also encrypt a message telling them “I’m old enough to get into the bar”
I just had a crazy interview with Mind Network, highlights here 👇
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👩🏻💻 Solidity, Vyper, Rust, Python, Javascript...
⭐️ If you're looking to start a professional smart contract project, then you HAVE to know about the starter-kits.
These are a collection of templates for every smart contract environment with
@chainlink
examples built in! 👇
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✨ Python (16hr) & Javascript (32hr) Mega Courses have been updated for Goerli over Rinkeby and Kovan.
🫡🫡🫡🫡🫡🫡🫡
Thank you Rinkeby & Kovan for your services.
Happy Merge Day!
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Blockchain devs both senior and junior.
😈 Y’all don’t even know what I got planned for you.
We talkin bout the WORKS.
Y’all gonna know EVERYTHING.
We talking full-stack, DeFi, DAOs, advanced hardhat shit, proxies, tokens, hidden prizes you NAME IT.
Couple months…
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Remember to have fun in whatever you do.
If you're not having fun, you'll lose focus.
If you lose focus, you won't stay consistent.
Have fun.
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Tokenized RWAs are going to become easier and easier to make.
Chainlink Functions is one of the most slept on technologies of 2024.
You can hook up a token to any off-chain collateral in a decentralized context with ease.
Boom, tokenized RWAs.
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Most devs have an opinion on js vs py vs rust etc.
Having made JS, Python, and now "raw" solidity educational content, I have some history of viewing which languages give the most issues.
And I can say the following with 100% confidence.
Javascript is a cesspool of gotchas.
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We are BEYOND thrilled to be announcing the next generation of web3 security:
Introducing:
@codehawks
The Smart Contract Audit Marketplace.
🦅 What is CodeHawks, and why did we decide to build this 👇
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I should post less lifting vids…
But YO -
#345
clean PR!!
(Ugly but whatever)
After doing 2 WODs!
Strong coders == dope
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🌱 Lens Protocol is a decentralized composable social graph enabling developers to make the next generation of social media, with their backend already done!
Here is what makes
@LensProtocol
such a game changer for web3 devs 👇
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I thought I was just good at stuff as a kid.
Then I started coding. Everyone was way better than me. I thought I was dumb.
Somehow I stuck with it, and it taught me that you really can learn anything, and consistency is the magic powder.
And "sucking at it" is step 1
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How to be a full stack web3 developer:
1. Learn solidity or vyper
2. Javascript
3. Framework like nextjs, reactjs, svelte, or angular
4. Tooling (decentralized or centralized) like Thegraph, moralis, IPFS, or more
There are many techs not mentioned here, this is a minimum
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🎊🎊🎊 ITS HERE 🎊🎊🎊
Web3 / Blockchain / Smart Contract Developers...
🔵The Spring 2022
@chainlink
Hackathon is Here!
🦾🦾🦾🦾🦾
AND.
ITS.
BIG.
🦾🦾🦾🦾🦾
Register and read here to see the event you don't want to miss... 👇🧵
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🪙 Stablecoins are a misunderstood DeFi primitive.
Let's clear some things up.
1. "Algo stablecoins are bad" is wrong
2. "A stablecoin is anchored to another asset" is wrong
3. Where do stablecoins come from? (IMPORTANT)
Let's jump in. 🧵
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One of the quickest ways to learn anything is to try it.
Smart Contracts:
- I kept writing solidity & vyper
Running validators & nodes:
- I kept running different kinds of nodes
Audits:
- I sat my ass down and screamed at my computer for days until I found bugs
Stay curious
19
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How to get into competitive audits:
1. Learn basic solidity/vyper
2. Start doing competitive audits
The more audits you do, the better you'll get.
Here is your gameplan going into an audit, and exactly how to get the most out of your first one 👇
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Today's "hack" is a big deal.
There was an issue with a wallet leaking keys.
There is a narrative here about trust minimization, but another one about making sure you understand how private keys work.
We need to fix or greatly improve both for our industry to hit the masses.
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Had a 45 min long convo with my girlfriend’s non-crypto friends about crypto, finance, and SVB.
And good lord their questions were amazing.
“So money can be… anything?”
“Shouldn’t we just decide on a money that a government doesn’t control?”
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🌪️ What's happening with Tornado Cash and Coinbase is STILL one of the most important battles happening today in Web3.
Let me explain, or just watch my video
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BREAKING: Web3 devs are dope af
Keep grinding y’all, happy Monday
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How to make a Stablecoin | Foundry Full Course
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The new full-stack web3 developer Rivet tool from the
@paradigm
team is looking thicc and juicy
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Chainlink's CCIP has now entered general availability.
I'm so excited.
I can finally bridge assets without praying to the blockchain deity.
"Dear lord, please let my money come out the other side of this shady bridge"
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You want to know why I make free content? 🤔
Because there is an echoing choir of people desperately searching to find a better life for themselves and the people around them, and I was once one of those people.
Quick thread 🧵
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1. Course
2. Build & Research
3. Apply
4. Repeat 2 & 3
These are the 3 steps to entering a new career, or learning a new skill set.
Especially in the blockchain and web3 security world.
Let me explain:
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For the next few weeks, we at the ⛨ Cyfrin team will be streaming a real LIVE web3 solidity audit.
As far as we know, this has never been done before.
Those of you looking to follow along to see an end-to-end audit as it happens LIVE, here are the details you need to know 👇
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🏋️♂️ Repetition is the mother of skill.
If you want to get good at anything, spend more time doing it.
🧱 If you’re looking to get a job in web3, keep building, keep trying new challenges, keep growing.
Eventually, you’ll have so many skills it’ll be hard to not hire you.
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gm
Solid 315.
Not a PR, but can consistently hit it.
I need to get my hips and shoulders in more.
Stay fit, hungry, and always be improving y’all.
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📣 Announcing...
🎥 ChainDev! A new
@chainlink
YouTube channel dedicated to making developer-focused web3 content.
We are kicking it off with 5 AMAZING videos, and would love it if you could all go, like, and subscribe!
💙 Please like and subscribe 👇
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Learn Solidity, Blockchain Development, & Smart Contracts | Powered By AI - Full Course (0 - 6)
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If you learn
#solidity
, you've basically learned the next generation of backend.
Congrats to those who have.
Those who haven't, welcome to
#blockchain
:)
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1/11
💾 Let's learn about storage in solidity!
A web3 educational thread 🧵 👇
📄 Storage is where our state or global variables get stored in our smart contracts. Whenever we create a contract-level variable, in the background, solidity adds it to this "storage" data structure!
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IT.
IS.
LIVE.
Learn smart contract auditing, security, and DeFi in this INSANE 22-hour long course!
More than $1,000,000,000 has been stolen on-chain in 2023.
We’re here to change this.
The security and auditing course is now open to everyone ✨
Here’s how you can get access now:
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DID YOU ALL SEE
@AriJuels
AND FRENS DO A LIVE DEMO OF FSS???
MEV YOUR FUCKIN DAYS ARE NUMBERED
THIS is one of the biggest reasons I got into web3, how do we solve the front running problem.
@chainlink
is fucking how
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❓Trivia: Reverting a transaction if conditions aren't met is an essential tool for literally all smart contracts!
But as of v0.8.4 of solidity, which one of these is more gas efficient?
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