shafu @shafu0x Twitter profile

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@MEcvsVereniging

shafu

@shafu0x

4 years

Learn the following: - Read - Write - Basic Mathematics - Computer Programming and you are set for life. - @naval

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shafu

@shafu0x

6 months

Happy to announce the "EVM from scratch" book. Still a work in progress but I want to write it in public. It is open-source so feel free to create an Issue or Pull Request.

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shafu

@shafu0x

1 year

Anyone knows a good designer? I'm looking for a logo and thumbnail. Web3 affinity would be great.

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shafu

@shafu0x

4 months

Our protocol is easy to understand. Our protocol:

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shafu

@shafu0x

1 year

Foundry projects I use as a reference: - sablier v2 - maple finance - solmate - art gobblers Any other recommendations?

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shafu

@shafu0x

4 months

Every excellent Solidity dev is simultaneously a security researcher.

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shafu

@shafu0x

2 months

A nerd with social skills is unstoppable.

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shafu

@shafu0x

3 months

Developers know the risk.

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shafu

@shafu0x

13 days

It took 2 years of building 6 re-writes 2 soft-launches And a bear market to get where we are @0xDYAD

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shafu

@shafu0x

8 months

Complexity in software is bad. Complexity in smart contracts is terrible.

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shafu

@shafu0x

3 months

I don't trust code to hold my funds. I'm an EOA maxi.

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shafu

@shafu0x

1 year

Every contract is "open-source" if you can read assembly.

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shafu

@shafu0x

13 days

Incredible feeling to have 10 Million dollars in code you wrote. If you are using @0xDYAD and have any suggestion on how to improve things please let us know. Your feedback is super valuable.

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shafu

@shafu0x

1 year

foundry will save this industry billions of dollars

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shafu

@shafu0x

5 months

Modifiers completely change how you can write tests. This is beautiful imo.

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shafu

@shafu0x

2 years

is this naming scheme really a good idea?

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shafu

@shafu0x

3 months

Solo Audit ✅ @code4rena Audit ✅ @ShieldifySec Audit ✅ Excited to deploy @0xDYAD v2 very soon

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shafu

@shafu0x

4 months

Lines of code is not a flex. Number of audits is not a flex. Complexity is not a flex.

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shafu

@shafu0x

6 months

Good friends of mine are hiring smart contract devs. Very interesting technical problems. Dm me if you are interested.

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shafu

@shafu0x

4 months

Hackers are the auditors of auditors.

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shafu

@shafu0x

5 months

One genius Auditor is worth more than a legion of average Auditors.

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shafu

@shafu0x

7 months

Thinking about turning my "evm from scratch" repo into a video series. Would cover: - memory - stack - storage - opcodes - precompiles

GitHub - shafu0x/evm-from-scratch-python: EVM in python from scratch because why not

EVM in python from scratch because why not. Contribute to shafu0x/evm-from-scratch-python development by creating an account on GitHub.

github.com

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shafu

@shafu0x

3 months

The only smart contract I would trust with everything I own is WETH on Ethereum. No other network. No other contract.

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shafu

@shafu0x

5 months

This is going to be fun. If you want to break my code and win some money check it out. Very soon ™️

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shafu

@shafu0x

1 year

Quick prototype I build for all @huff_language devs out there. Automatically generate the stack comments for your macros. Something that could be integrated into an editor later on.

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shafu

@shafu0x

5 months

The best Smart Contract devs I know have no problem jumping between Solidity and Assembly.

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shafu

@shafu0x

1 year

Python forces you to dislike for-loops. Solidity will teach you to hate them.

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shafu

@shafu0x

3 months

You can instantly see when writing smart contracts becomes art.

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shafu

@shafu0x

1 year

Anyone feel like there are more people going into contract auditing than writing them? Don't know if thats a good or bad thing...

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shafu

@shafu0x

1 month

Smart contracts take years to develop and seconds to deploy, but their impact can last for decades.

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shafu

@shafu0x

26 days

Learn to build. Learn to audit. If you can do both, you will be unstoppable.

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shafu

@shafu0x

4 months

Building Smart Contracts is an endless survival game. lvl 1: compiler lvl 2: chat GPT lvl 3: you lvl 4: tests lvl 5: auditors lvl 6: hackers <-- final boss You can never be sure that you won Level 6.

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shafu

@shafu0x

5 months

ideal web3 startup: 1 repo open-source perfect test coverage tokenized ownership onchain bank account onchain revenue real-time reports

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shafu

@shafu0x

1 year

Something REAAALLY funny just happened to me. I was checking if I was eligible for the $ARB airdrop. I found this random address in my wallet with some Arbitrum interactions. And YES it turned out to be eligible. The thing is I don't remember using it at all!

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shafu

@shafu0x

4 months

You should feel very lucky if someone looks at your code. Build in public!

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shafu

@shafu0x

4 months

Who audits the auditor?

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shafu

@shafu0x

3 months

Do not waste your time trading if you are a good builder.

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shafu

@shafu0x

1 month

The contracts should be simple. The tests should be complex.

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shafu

@shafu0x

3 months

Auditing is not scalable.

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shafu

@shafu0x

1 month

We are looking for a solo auditor that is an expert in lending protocols. Dm me directly if you think you are a good fit.

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shafu

@shafu0x

7 months

Auditing is highly non-linear. The top 20% make all the money. You will never hear about the bottom 80%.

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shafu

@shafu0x

1 year

Any animators here that want to work on a idea I have around visualizing Ethereum state transitions? Dms are open!

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shafu

@shafu0x

2 years

@nonfungibletc @kelvinfichter @BeanstalkFarms easily avoidable by preventing the voting AND execution of the proposal inside one and the same block. vote -> than wait at least one block -> execute

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shafu

@shafu0x

6 months

I did two hackathons in a row now and I didn’t see one beginner using Foundry. Is Hardhat more beginner friendly because of JS or are we just bad at marketing?

shafu

@shafu0x

6 months

I converted at least 4 people from Hardhat to Foundry. I would call this a successful #ETHOxford hackathon.

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shafu

@shafu0x

4 months

Coding interviews are too abstract. I only hire someone after a paid 2-day internship.

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shafu

@shafu0x

4 months

Some thoughts about Auditing: - one great auditor is worth a legion of average auditors - contests have a big overhead - audit before writing code if you can - solo audits do not have the "prestige" - auditing your deployment script is a must - solo audits are underrated

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shafu

@shafu0x

4 months

Auditing is not a get-rich-quick scheme.

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shafu

@shafu0x

4 months

The Solidity compiler is not a black box. Learn how it works to write better code.

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shafu

@shafu0x

9 months

Yes, Foundry is awesome. But, re-building everything in Solidity can not be the solution. We need a better interface between Solidity and a general purpose library like Python. ffi is not good enough.

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shafu

@shafu0x

1 month

Spending a lot of time in a third-world country there exists a "dollarized" class. This class lives in closed off compounds, never uses public transportation and very rarely interact with the other classes. As the local currency loses value compared to the dollar this

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shafu

@shafu0x

11 months

Simple @huff_language formatter I and @igorlineee worked on. Pretty functional now.

GitHub - shafu0x/huff-fmt

Contribute to shafu0x/huff-fmt development by creating an account on GitHub.

github.com

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shafu

@shafu0x

6 months

The real status symbol is the amount of leading zeros in your address.

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shafu

@shafu0x

18 days

A great engineer and good friend of mine is looking for a freelance / part-time position as a smart contract dev. Who is hiring?

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shafu

@shafu0x

4 years

@dare2bharat @velumania @naval @Sentdex is great! Another great @naval quote: The resources we have are abundant. The willingness to learn is rare. I wish you the best on your journey. It is worth it!

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shafu

@shafu0x

1 month

NFTs as art are overrated. NFTs as an abstraction for financial assets are underrated.

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shafu

@shafu0x

10 days

We got where we are at @0xDYAD without having a single scheduled meeting.

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shafu

@shafu0x

5 months

Do you guys experience "code blindness"? Happens to me after looking at the same code for too long. Makes one miss the simplest mistakes.

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shafu

@shafu0x

6 months

I converted at least 4 people from Hardhat to Foundry. I would call this a successful #ETHOxford hackathon.

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shafu

@shafu0x

3 months

Maximize your iteration speed. You need to fail quickly.

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shafu

@shafu0x

6 months

Happy cancun day to those who celebrate! In honor of this day, I have added a new section for tstore and tload in the "EVM from scratch" book.

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shafu

@shafu0x

1 year

What are the best EVM bytecode obfuscation tools? This one seems really cool.

GitHub - xf97/BiAn: BiAn is a code obfuscation tool for Solidity smart contracts (APSEC 2020).

BiAn is a code obfuscation tool for Solidity smart contracts (APSEC 2020). - xf97/BiAn

github.com

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shafu

@shafu0x

1 year

I added a couple of new features to the @huff_language stack generator: - end comment for STOP opcode - multiple opcodes per line (as requested by @plotchy ) - add takes input parameters to the start of the stack

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shafu

@shafu0x

4 months

The Zen of Solidity Security comes first. Gas is bad. Standards are good. Simple is better than complex. Flat is better than nested. Readability counts. Beautiful is better than ugly.

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shafu

@shafu0x

10 months

Can anyone recommend a solo auditor? We are looking for someone to audit the @0xDYAD contracts.

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shafu

@shafu0x

3 months

You read code way more than you write it. This is why beautiful code is not a nice-to-have but a necessity.

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shafu

@shafu0x

4 months

Crypto is the only industry that makes nerds rich.

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shafu

@shafu0x

2 years

Wow, @MeirBank , @NaimAshhab and I just won $1000 at @EFDevconnect from @Superfluid_HQ for building the Multi Bridge: What an awesome weekend!

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shafu

@shafu0x

3 months

If you don't understand a library look at its code. The code is the best documentation.

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shafu

@shafu0x

1 month

Stop looking at prices. Start looking at code.

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shafu

@shafu0x

2 months

I've built a couple of indexers from scratch in the past. ponder makes this 10x easier. Check out the new Notes table for @0xDYAD

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shafu

@shafu0x

9 months

Github is the best proof-of-skill we have. If a company asks for more you don't want to work there.

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shafu

@shafu0x

1 month

It is easier to become a SR after being a dev.

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shafu

@shafu0x

2 years

@optimizoor it gets better flip, flop, slip, frob, flux... how should anyone understand this?

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shafu

@shafu0x

3 months

Smart contracts are perfect for learning about exploits. - isolated environment - open state - immense consequences

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shafu

@shafu0x

30 days

Auditing can not be automated.

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shafu

@shafu0x

9 months

I highly respect protocols that can be explained in a single sentence: - @mean_fi - @Sablier - @Uniswap - @SetProtocol - @0xDYAD (Soon™) * some of them (in no particular order)

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shafu

@shafu0x

4 months

Don't trust a demo, paper or website. Only trust the code!

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shafu

@shafu0x

4 months

We are looking for a solo auditor. Dm me if you want to work with me on auditing a small @0xDYAD refactor.

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shafu

@shafu0x

9 months

Nothing like the thrill of deploying on Mainnet.

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shafu

@shafu0x

1 year

Quick code walkthrough looking at huff-stacker. A tool that automatically generates stack comments for @huff_language macros.

Generate Huff Macro Stack Comments with huff-stacker

github.com/shafu0x/huff-stackertwitter.com/shafu0x

www.youtube.com

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shafu

@shafu0x

2 years

pytorch to tensorflow is like foundry to hardhat

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shafu

@shafu0x

28 days

Code what you love until you love to code.

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shafu

@shafu0x

27 days

Which protocol you work on is far more important than how hard you work. With infinite leverage, judgement becomes the ultimate skill.

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shafu

@shafu0x

6 months

Rising TVL is a double-edged sword for a smart contract dev. You are happy people use your code, but sleep just got a little harder, thinking about potential exploits. 1 Million is still a great milestone though. @0xDYAD

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shafu

@shafu0x

3 months

web2: move fast and break things web3: move fast and get hacked

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shafu

@shafu0x

4 months

If you need to prepare for an interview, it is not the optimal job for you.

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shafu

@shafu0x

7 months

Multiple Inheritance makes a codebase an order of magnitude more complex.

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shafu

@shafu0x

3 months

The best auditors can ask for millions because they are securing billions.

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shafu

@shafu0x

1 month

Don't talk about intentions. Talk about protocol design.

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shafu

@shafu0x

12 days

Airdrops are the greatest marketing tool ever invented.

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shafu

@shafu0x

4 months

"Overnight success" is hard work paying off in a non-linear field.

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shafu

@shafu0x

1 year

People used this address so many times on Arbitrum that it actually became eligible for the Airdrop.I'm already looking forward to the gas war that will happen on launch date to claim these 3250 $ARB tokens. Arbitrum apparently didn't filter the eligible addresses at all.

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shafu

@shafu0x

5 months

Cryptos PMF are Stablecoins.

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shafu

@shafu0x

3 months

Before writing Solidity, implement your math in Excel.

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shafu

@shafu0x

6 months

Smart contract complexity is NOT a status symbol.

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shafu

@shafu0x

4 months

We need an ELO score for auditors.

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shafu

@shafu0x

4 months

The goal of the Solidity compiler is to make inline-assembly unnecessary.

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shafu

@shafu0x

3 months

Working with friends turns work into play.

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