Bartłomiej Macioch

Blockchain Basics on @CyfrinUpdraft: 30/30! 🎯🦾 Not easy, but a total gamechanger. Replacing middlemen with verifiable code is a massive shift. 🌐🏗️ Foundation is rock solid. Next stop: Solidity. 🏗️💻 How did you start your Web3 journey? 👇 #Web3 #Success #Blockchain

Continuing my Solidity journey with @CyfrinUpdraft! Today’s focus: Gas Optimization 🚀 I learned to use constant and immutable to make my code cheaper and cleaner. Every little bit of gas saved counts #Solidity #Web3 #BuildInPublic

@DefiHimanshu @CyfrinUpdraft Thanks! It definitely hits different. Giving it my 100% every day to master this. Let's keep building🔥

@bartmacioch @CyfrinUpdraft Deploying FundMe to Sepolia testnet is a huge milestone in any Solidity journey! That first contract going live — even on testnet — hits different. Smart contract development is genuinely one of the hardest yet most rewarding paths in Web3. Keep building! 🔥

Continuing my Solidity journey with @CyfrinUpdraft! Today I went live, deployed 'FundMe' to the Sepolia testnet using Remix and MetaMask. 🥳 #Solidity #Web3 #BuildInPublic

@LessonsFromProd @CyfrinUpdraft Spot on! Keeping it simple for now as I learn the basics, but definitely looking forward to diving into more complex access control soon. Thanks for the heads up🫡

@bartmacioch @CyfrinUpdraft constructor for owner, gated withdraw. solid foundation. The tricky part comes next when you realize access control gets more complex fast. like, what happens when you need multiple roles, or want to transfer ownership safely. worth thinking about early.

Continuing my Solidity journey with @CyfrinUpdraft! Today was all about security. I implemented a constructor to set the contract owner and restricted the withdraw function to prevent unauthorized access.💪 #Solidity #Web3 #BuildInPublic

Continuing my Solidity journey with @CyfrinUpdraft 🚀 Today, I Mastered the 3 ways to send ETH in #Solidity: transfer, send, and call. Key takeaway: call is the recommended method because it has no gas limit and returns a success boolean. #Web3 #BuildInPublic #Ethereum

Still grinding with @CyfrinUpdraft Implemented the withdraw function and mastered for loops to reset funder records in 'FundMe'. Crucial for keeping the contract state clean🫡 #Solidity #Web3 #BuildInPublic

@KalantariAria @CyfrinUpdraft Thanks for the heads up! I'll check it out🫡

@bartmacioch @CyfrinUpdraft u should join the waitlist at shippin.dev, great place to build in public.

Coffee, Remix, and more Solidity🫡 Still grinding through 'FundMe' on @CyfrinUpdraft. No shortcuts, just consistency #Solidity #Web3 #BuildInPublic

@aussiExau @CyfrinUpdraft Thanks! Shaping up great, no surprises so far🫡

@bartmacioch @CyfrinUpdraft Nice one, mate! Libraries really tidy things up, and being able to call functions on uint256 is so neat. How’s FundMe shaping up? Any surprises while testing?

Today I worked with PriceConverter and tested Solidity libraries. It’s so useful to keep the code organized and clean Coolest part? I can now call functions directly on uint256🤯 Back to work now, still a lot to do with 'FundMe' on @CyfrinUpdraft #Solidity #Web3 #BuildInPublic

@PashovAuditGrp 🫡🫡🫡

Just for the past 10 days we've engaged 50 security researchers. We understand & appreciate talent. Every day's another chance for us to craft a better security service. We take this chance & make it happen, with all these security researchers. That's why we work with the best🫡

Still working on 'FundMe' with @CyfrinUpdraft! Just implemented a contributor tracking system! Using msg.sender combined with arrays and mappings. The contract now registers every address sending ETH, maps each sender to their total contribution.🫡 #Solidity #Chainlink #Web3‌‌

Building „FundMe” with @CyfrinUpdraft! My new smart contract will: - Collect community funds - Secure withdrawals - Verify payment value based on real-time USD price Time to start exploring the power of @chainlink! 🔥 #Web3 #Solidity #BuildInPublic

@iamsaniydv definitely at night🌛

Hello Developer, when do you prefer to code, day or night?

Diving deep into @chainlink Price Feeds with @CyfrinUpdraft! Working on ‚FundMe’ integrated the AggregatorV3Interface and version check. Now building the logic to fetch real-time ETH/USD prices. Managing precision in Solidity is a challenge, but I'm loving the process! 🚀

@asen_sec Love this mindset! After how much time into your journey did you start seeing the first real results?

When I started in web3 security, I knew one thing - I wouldn't quit. I'm not the smartest or the most intense. Just stubborn. That's enough. Stay stubborn.

@TheBlockChainer that is so true 💯

“AI will replace developers.” Not in crypto. Not in smart contracts. Vibecoding is fun. GPT writes the code. You ship fast. You feel unstoppable. That works for apps. It does not work for smart contracts. Because smart contracts are not software. They are a financial infrastructure. Once deployed: - No hotfix - No rollback - No “we’ll patch it later” One mistake doesn’t create a bug. It creates a headline. People saying “AI will eliminate smart contract engineers” have never been responsible for code holding real money. AI doesn’t understand incentives. AI doesn’t model adversaries. AI doesn’t feel the cost of being wrong. Speed is cheap. Rigor is rare. And in crypto, rigor is the job. AI won’t replace serious smart contract engineers. It will expose those who never were.

@yap2earn @CyfrinUpdraft True, the beginning is always a test of will. Keep pushing and good luck on your journey! 👊

@bartmacioch @CyfrinUpdraft This is real. I'm on day one and already seeing how hard consistency is

Consistency and constant practice, that’s my focus right now. I’m starting to see real results in my Solidity journey and it feels amazing. Sticking to the routine is the only way to succeed. 🚀 Thanks @CyfrinUpdraft for the resources! #Solidity #Web3 #BuildInPublic