LUTO
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BUILDING IN PUBLIC TILL I GET MY BUGATTI 🎯 Dropping tips, projects , video editing , figma designing ... 🌐 http://luto-portfolio.netlify.app
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Repost from Onyx Design ⚡️
🎉 Tadaaa
Officially, we’re live on YouTube 🎥
Excited to start this journey and bring you awesome, high-quality content I’ve been working on
Youtube Link : https://youtu.be/yD2oeG8DnHU?si=UuYJL5qHFcmbJlSR
Show me some love subscribe, share, and drop a comment.@OnyxDesignx
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✅ DAY 7/30
Transactions, Gas Fees & Reading the Blockchain (Etherscan)
Today I learned that every move in Web3 is public, traceable, and permanent.
No hiding. No guessing.
Just math + code doing their thing.
🔁 What Is a Blockchain Transaction?
A transaction is not just “sending money”. It can be:
Sending crypto
Minting an NFT
Swapping tokens
Calling a smart contract function
A transaction is basically:
“I want the blockchain to update its state.”⛽ Gas Fees (Why You Pay Them) Blockchains like Ethereum don’t run for free. Gas fees pay for: •Computing power •Network security •Validator work You pay gas in ETH, even if you’re sending another token. Why Gas Fees Change Gas fees depend on: •Network congestion •Complexity of the transaction •Demand vs space in blocks •High traffic = higher gas. That’s why sending ETH during hype can be expensive 💀 🧱 What Happens When You Send a Transaction? - You click “Confirm” in your wallet >Wallet signs the transaction with your private key >Transaction goes to the mempool (waiting area) >Validators pick it up It gets added to a block Blockchain state updates Once confirmed: ❌ Can’t cancel ❌ Can’t reverse 🔍 What Is Etherscan? Etherscan is a blockchain explorer. It lets you: -Track transactions -View wallet balances -Inspect smart contracts -See gas fees -Verify if a tx succeeded or failed Basically: Google for Ethereum 📄 Reading a Transaction (Simple Breakdown) When you open a tx on Etherscan, you’ll see: •TX Hash •Unique ID of the transaction Status •Success / Failed / Pending •From / To •Sender and receiver addresses •Value •Amount of ETH transferred •Gas Used & Gas Price •Cost of execution •Block •Which block it was included in This is how you verify nothing is fake. ❌ Failed Transactions A failed tx still: •Uses gas >Costs money >Changes nothing }}}Reasons for failure: ~Not enough gas ~Contract condition failed ~Slippage issues Painful lesson everyone learns once 😭 🧠 Big Realization Today In Web3: There’s no “trust me bro” Everything is verifiable Anyone can audit anything You don’t trust people. You verify transactions. 🔗 Resources for Day 7 🎥 YouTube • Blockchain Transactions Explained • Gas Fees Explained 🌐 Websites • etherscan.io • ethereum.org -->> Gas & transactions
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Repost from TechVibe
If you like this project, please go ahead here and react on my project 👍 or ❤️ works.
I competing on zulu tech challenge🙏
Link: https://t.me/zulu_tech/5053
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RIP PostgreSQL (2026-2026) 💀💨
Man, I’m officially done with Postgres. I spent the last few hours fighting for my life in the terminal just trying to get the "lil ahh" installer to behave.
Imagine downloading a whole database engine just for it to stay silent every time I try to initialize it. No error messages, no logs, just straight-up ghosting me like a bad ex. I tried unzipping the portable version, moving it to different drives, fixing Windows permissions, and even installing Visual C++ libraries just to get it to breathe nothing. My dummy ahh really thought I could win against Windows System32 permissions today.
The Headache:
initdb failing silently (the ultimate disrespect).
Windows Path errors every 5 seconds.
Terminal acting like the commands don't even exist.
So, I’m switching to SQLite. Why? Because it’s literally just a file. No installers, no hidden background services, no port 5432 drama. Just npm install better-sqlite3 and we’re actually coding the game instead of playing "Database Architect."
If you see me using Postgres again, just know I’ve been hacked. SQLite gang from now on. 😤📁
#Programming #LudoBot #DevLife #PostgresHateGroup #SQLite #BuildingInPublic
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✅ DAY 6/30
Wallets, Private Keys & Owning Your Identity
Today I learned that in Web3, your wallet is not just an app.
It’s your:
Identity
Bank account
Login
Proof of ownership
Lose it… and it’s gone. No “forgot password” 😭
🦊 What Is a Crypto Wallet?
A crypto wallet (like MetaMask) does NOT store your money.
Instead, it stores: 👉 Your private keys
Your crypto actually lives on the blockchain, not inside the wallet app.
The wallet is just a tool that lets you:
Prove ownership
Sign transactions
Interact with smart contracts
🔑 Public Key vs Private Key
This part is crucial.
🔓 Public Key (Address)
Like your bank account number
Safe to share
Used to receive crypto
Everyone can see it on the blockchain
Example: 0xA1b2c3...
🔐 Private Key
Like your ATM PIN + signature
NEVER share this
Used to approve transactions
Proves you are the owner
If someone gets your private key -> They control your wallet. Period.
🌱 Seed Phrase (Recovery Phrase)
Your wallet gives you 12 or 24 words when you create it.
This is called a seed phrase.
Important facts:
It can recreate your entire wallet
It controls ALL accounts under it
Anyone with it = full access
If you lose it:
❌ No recovery
❌ No support
❌ No reset
Web3 gives freedom… but also full responsibility.
✍️ What Does “Signing a Transaction” Mean?
When you send crypto or interact with a smart contract, you’re not “sending money” directly.
You’re:
•Creating a message
•Signing it with your private key
•Sending that signature to the network
The network checks:
Does this signature match the public address?If yes -> transaction is valid. This is how blockchain knows it’s really you. 🧠 Wallets as Web3 Login In Web3: No emails No passwords No usernames You just: 👉 Connect your wallet 👉 Sign a message, That’s your login. This means: •Apps can’t lock you out •You own your identity •Your data stays with you ⚠️ Risks & Reality Check Because there’s no middleman: • Hacks are final • Scams are common • Mistakes cost real money That’s why: Never share seed phrase Use hardware wallets for large funds Double check sites before connecting wallet In Web3:
Not your keys = not your cryptoWallets shift power from companies --> individuals. ✓More freedom. ✓More control. ✓More responsibility. 🔗 Resources I Used Today Crypto wallets explained Public and private keys 📖 Websites • ethereum.org ... Wallets & keys • metamask.io ... Wallet basics #WEB3CHALLENGE
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Day 5 – Summary (Notes):
This section introduces the practical coding phase, where concepts are implemented through actual code. Focus is on understanding syntax, logic flow, and how different parts of a program work together by building small functional examples.
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✅ DAY 5/30
Smart Contracts (The Heart of Web3)
Up to now I learned:
Why Web3 exists
How blockchain works
Who runs it
Why Ethereum is different
Today I learned about the core power of Web3:
👉 Smart contracts
This is where coding actually enters the picture.
🤖 What Is a Smart Contract?
A smart contract is a program stored on the blockchain that:
• Runs automatically
• Follows fixed rules
•Can hold and transfer money
•Cannot be changed after deployment
•Once it’s live, no one can tamper with it {not even the creator.}
It’s not “smart” because it thinks.
It’s smart because it executes rules perfectly.
🏦 Why Smart Contracts Matter
In traditional systems, you need:
Banks, Lawyers, Companies, Platforms
All of them act as middlemen.
Smart contracts replace them with code.
Instead of:
“Trust us, we’ll handle it”It becomes:
“Here’s the code. The rules are public.”🔄 How Smart Contracts Work (Simple Flow) 1️⃣ Someone interacts with the contract 2️⃣ The contract checks its rules 3️⃣ If rules are met → action happens 4️⃣ If rules are not met → transaction fails. 💡 Real Examples (Not Theory) 🎁 Crowdfunding Rules in code: If total funds ≥ goal -> send to creator Else -> refund everyone No one can run away with the money. 🗳 Voting Rules: One vote per wallet Voting period limited Results calculated automatically No manipulation. 🖼 NFTs Rules: Each token is unique Ownership is recorded permanently Only the owner can transfer it 🪙 Tokens Rules: Fixed or controlled supply Automatic transfers Transparent balances 🔐 Why They’re Trustless Smart contracts: •Are visible to everyone •Follow exact rules •Don’t rely on human promises •You trust what the code does, not what someone says. ⚠️ Important Reality Check Smart contracts are powerful… but dangerous if written badly. Once deployed: Bugs can’t be patched easily Mistakes can cost real money Hackers exploit weak logic, not the blockchain itself That’s why security matters in Web3.
