The Curious Engineer

All blogs / AI / ML

VelvetShark • Radek Sienkiewicz

velvetshark.com

Radek's personal website about learnings, challenges, software development, and much more.

AI / MLCrypto / fintechDev tools / editors / IDEs

’20’21’22’23’24’25’26
Posts
55 from 25 Jul 2020 to 2 Oct 2026
Posting
monthly (15 in the last year)
Kind
personal blog
Feed
https://velvetshark.com/rss.xml

2026 13

  1. Where was I? A Linear Loop that keeps each project's current state
  2. I wanted a timer at the edge of my screen, so I built one
  3. Bad at Tetris, good at Tetris
  4. Grok Bot after 67 real jobs: what worked, what broke
  5. Why personal iPhone apps are finally worth building
  6. One bored voice: how I rebuilt the Polish lektor with the technology he inspired
  7. OpenClaw Memory Masterclass: The complete guide to agent memory that survives
  8. 50 days with OpenClaw: The hype, the reality and what actually broke
  9. Stop overpaying for OpenClaw: Multi-model routing guide
  10. Compound Engineering: the AI coding workflow that actually learns
  11. Data analysis with Claude Code: 500,000 rows without writing code
  12. ClawdBot: The self-hosted AI that Siri should have been
  13. Stop prompting Claude Code - let it interview you

2025 5

  1. Building a Large Language Model from scratch: A learning journey
  2. Banana Straightener: AI image generation that actually gets it right
  3. Why do AI company logos look like buttholes?
  4. My AI agents journey
  5. 12 challenges in 12 months. Again.

2024 6

  1. SummerIce: A Simple solution for information overload
  2. EIP-3074 - Pass the AUTH, please!
  3. ERC-1271 - Now smart contracts can sign transactions too!
  4. ERC-4337 - It's all about Account Abstraction
  5. What are Ethereum Standards - EIPs, ERCs, RIPs, CAIPs
  6. How many time zones are there in the world?

2023 4

  1. Solidity Smart Contract Template
  2. Merkle Trees
  3. Pushing my limits - What I learned from a year of monthly challenges
  4. December Challenge: Daily post on Instagram

2022 11

  1. How to Become a Crypto Billionaire in 15 Minutes. Legally.
  2. Consistency
  3. November Challenge: No coffee
  4. October Challenge: 7-minute daily hanging
  5. Max values for each uint in Solidity, from uint8 to uint256
  6. September Challenge: One hour of learning every day
  7. Don't do stupid shit
  8. August Challenge: No alcohol
  9. My 200 days of daily web3 learning and building
  10. July Challenge: Cold shower in the morning
  11. June Challenge: Waking up before 9 AM

2021 12

  1. May Challenge: 30 minutes of reading a paper book
  2. Web3 Learning Journey month 2 update: it's all starting to come together
  3. April Challenge: No sugar (again)
  4. Web3 Learning Journey 1-month update: React and starting with Solidity
  5. My web3 Learning Journey
  6. My new best friend
  7. March Challenge: The effects of zero sugar and zero news
  8. February Challenge results: The effects of publishing daily for a month
  9. January Challenge results: Great effort, great outcome, needs modifying
  10. What happens when your article is mentioned in the Morning Brew newsletter?
  11. How to develop a bias for action
  12. A Challenging Year with twelve 30-day challenges

2020 3

  1. Why do so many brands change their logos and look like everyone else?
  2. To get food, I learned Selenium and web scraping in one day. And I’m not even a programmer.
  3. How to read large files on a Mac (CSV, JSON, etc.)

Undated 1

  1. TIL (Today I Learned)