Hi, I'm Christoph Michel 👋

I'm a , , and .

I mostly do and help small to mid-sized teams from all over the world 🌎 on both short and long-term projects on an independent contractor basis.

I strive for efficiency ⏱️ and therefore track many aspects of my life.

Latest Articles

  1. Progress Report - July 2021

    I post a progress report showing what I did and how my products performed each month. Last month’s report can be seen here. What did I do Hours worked on side-projects in July I worked 106 productive on side projects hours last month. To make these progress reports a bit more…

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  2. Progress Report - June 2021

    I post a progress report showing what I did and how my products performed each month. Last month’s report can be seen here. What did I do Hours worked on side-projects in June I worked 101 productive on side projects hours last month. To make these progress reports a bit more…

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  3. Progress Report - May 2021

    I post a progress report showing what I did and how my products performed each month. Last month’s report can be seen here. What did I do Hours worked on side-projects in May I worked 102 productive on side projects hours last month. To make these progress reports a bit more…

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  4. BSC PancakeBunny Exploit Post Mortem

    On May 19th 2021, PancakeBunny was exploited by an attacker abusing a wrong PancakeSwap LP price computation in Bunny’s contract to mint 6.97M BUNNY tokens which were then exchanged for a profit of 114,631 WBNB (~30M USD). Background PancakeBunny is a yield aggregator accepting…

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  5. EOS vaults.sx hack

    The vaults.sx contract on EOS mainnet has been exploited through a re-entrancy attack. 1,180,142.5653 EOS (~13M USD) and 461,796.8968 USDT were stolen making this the biggest hack on EOS. Vaults.sx is a yield aggregator where users can deposit EOS or USDT in return for interest…

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  6. Progress Report - April 2021

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  7. Progress Report - March 2021

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  8. Replaying Ethereum Hacks - Sushiswap BadgerDAO's Digg

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  9. Progress Report - February 2021

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  10. Replaying Ethereum Hacks - Furucombo

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  11. Replaying Ethereum Hacks - Introduction

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  12. Paradigm CTF 2021 Solutions

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  13. Progress Report - January 2021

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  14. DeFi Sandwich Attacks

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  15. Capture The Ether Solutions

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  16. Ethernaut Solutions

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  17. Damn Vulnerable DeFi Solutions

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  18. Goals 2021

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  19. Progress Report - December 2020

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  20. Pricing LP tokens | Warp Finance hack

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  21. Progress Report - November 2020

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  22. Progress Report - October 2020

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  23. How I gamed EOS Defi projects and still got rekt

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  24. Progress Report - September 2020

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  25. How to install an old package version with brew

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  26. Fixing C++ compilation bugs for the MacOS Catalina upgrade

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  27. Progress Report - August 2020

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  28. Progress Report - July 2020

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  29. Obfuscating EOSIO smart contracts

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  30. Progress Report - June 2020

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  31. Progress Report - May 2020

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  32. Typing transformations in TypeScript

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  33. Progress Report - April 2020

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  34. 8 EOSIO WASM intrinsics you might not have heard about

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  35. EOSIO C++ IntelliSense in VSCode

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  36. Implementing efficient Dividend tokens

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  37. Testing EOSIO smart contracts with Hydra

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  38. Progress Report - March 2020

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  39. Progress Report - February 2020

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  40. How to check if an EOS account has a smart contract

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  41. Launching EOS Token Portfolio

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  42. How to deploy a create-react-app with github-actions

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  43. Progress Report - January 2020

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  44. How to rollback to an older EOSIO.CDT version with brew

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  45. Goals 2020

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  46. Progress Report - December 2019

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  47. De-anonymizing eosblender.com

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  48. EOSIO - How to pay for users' CPU

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  49. EOSIO Dev Puzzle - What's the max amount of RAM that can possibly be consumed by storing a single uint64

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  50. Progress Report - November 2019

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  51. Earn on your unused CPU and help the EOS network!

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  52. Progress Report - October 2019

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  53. Progress Report - September 2019

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  54. What really happened during the EOSPlay hack

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  55. Progress Report - August 2019

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  56. Progress Report - July 2019

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  57. How to fetch any secondary EOSIO table index using eosjs

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  58. Progress Report - June 2019

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  59. Advanced EOSIO programming concepts

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  60. Progress Report - May 2019

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  61. How EOS code and ABI hashes are computed

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  62. Progress Report - April 2019

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  63. Blog redesign with Gatsby and TailwindCSS

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  64. Progress Report - March 2019

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  65. How to create beautiful epub programming ebooks

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  66. Progress Report - February 2019

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  67. Progress Report - January 2019

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  68. How to write pandoc plugins in Nodejs

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  69. Goals for 2019

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  70. Progress Report - December 2018

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  71. Deferred Transactions on EOS

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  72. Difference Boolean Constructor and Double Negation

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  73. Progress Report - November 2018

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  74. Deploying EOS contracts using EOS.js

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  75. Progress Report - October 2018 - No more mobile apps 😬

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  76. EOS 1.3 Contract Development Toolkit Updates

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  77. C++ Guide for EOS Development - Header files

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  78. C++ Guide for EOS Development - Multi-Index Container

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  79. Progress Report - September 2018

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  80. C++ Guide for EOS Development - Iterators & Lambda Expressions

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  81. C++ Guide for EOS Development - Templates

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  82. C++ Guide for EOS Development - Classes and Structs

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  83. Progress Report - August 2018

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  84. C++ Guide for EOS Development - Call by value / reference

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  85. C++ Guide for EOS Development - Basics

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  86. Learnings from building my first dapp on EOS blockchain

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  87. Progress Report - July 2018

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  88. Introducing King of EOS 🥁

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  89. Bugs in V8's Exponentiation Operator

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  90. Progress Report - June 2018

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  91. Building a landing page in Vue.js

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  92. React just got ugly - React 16.4 Update

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  93. Progress Report - May 2018

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  94. Async / Await - Return values

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  95. React - Fun with keys

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  96. Progress Report - April 2018

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  97. You might not need React Context

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  98. Importing Blender 3D Model with Texture to Three.js

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  99. Progress Report - March 2018

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  100. Lazy-loading images with React and Semantic UI

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  101. Thoughts on making EOS development easier

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  102. Progress Report - February 2018

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  103. How to access Google Spreadsheets with Node

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  104. Differences in Defining ES6 Class Methods

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  105. Creating a Remind-Me bot for Steem

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  106. Progress Report - January 2018

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  107. Splitting your app into micro-processes

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  108. Book Review - Attack of the 50 Foot Blockchain

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  109. How does Steem work, anyway?

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  110. Goals for 2018

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  111. Progress Report - December 2017

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  112. How to cross-post to Steem

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  113. How to cross-post to Medium

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  114. Progress Report - November 2017

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  115. Released my fifth React Native app

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  116. Trying DynamoDB for the first time

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  117. Progress Report - October 2017

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  118. Progress Report - September 2017

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  119. Headless Chrome in Node.js

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  120. Progress Report - August 2017

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  121. Progress Report - July 2017

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  122. React Native CodePush Cheat Sheet

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  123. Progress Report - June 2017

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  124. Progress Report - May 2017

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  125. Lightweight Progress Circles in React Native

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  126. Progress Report - April 2017

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  127. Book Summary - Clean Code

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  128. Progress Report - March 2017

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  129. Getting Song Lyrics in Node.js

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  130. Creating Dynamic Promise chains

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  131. Progress Report - February 2017

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  132. Google Drive in React Native

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  133. JavaScript void Keyword

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  134. Progress Report - January 2017

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  135. How to use D3.js in React

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  136. Playing around with Relay and GraphQL

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  137. Book Summary - Heard On The Street - Quantitative Questions from Wall Street Job Interviews

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  138. Creating Google AdSense Reports with Express

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  139. Progress Report - December 2016

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  140. Book Summary - On Writing Well

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  141. How is async/await transpiled to ES5

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  142. How are generators transpiled to ES5

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  143. Released my fourth React Native app

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  144. Styling TimePickerAndroid in React Native

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  145. Structuring Redux Selectors

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  146. How to set appParams in React-Native

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  147. Progress Report - November 2016

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  148. Book Summary - Team Geek

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  149. How to create a React Native Android Library

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  150. Ultimate Guide to non-working CSS margins

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  151. How to use React in Markdown

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  152. How to migrate from Wordpress to Phenomic

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  153. Moving from WordPress to a Static Site Generator

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  154. Publishing React Native App on Android

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  155. What I learned from building my first React Native App

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  156. Set React Native App Icon When Minimized

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  157. Charts in React Native with React-Native-SVG and D3.js

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  158. How to add Permissions in React Native

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  159. How to Get The Size of a React Native View Dynamically

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  160. Performance Optimizations in Redux' mapStateToProps

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  161. How to create a Pull Request on GitHub

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  162. Why you should not use mapStateToProps too often

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  163. Modifying a Leaf of the Redux State Tree

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  164. Styling DatePickerAndroid in React Native

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  165. How to create a More-Popup Menu in React-Native

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  166. Better JS Logger for Debugging

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  167. Limitations of the react-native JS engine

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  168. Enumerating a Grid in Spiral Order

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  169. Using Actions in Redux the Correct Way

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  170. Drawing Fractals with L-Systems in D3.js

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  171. Moving Wordpress to a different domain

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  172. Javascript ES6 + Babel.js + Grunt with Sublime Text

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  173. Howto Raytracer: Ray / Triangle Intersection Theory

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  174. Howto Raytracer: Ray / Plane Intersection Theory

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  175. Howto Raytracer: Ray / Sphere Intersection Theory

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  176. Creating seamless textures the easy way

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  177. Understanding front faces - winding order and normals

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