Luminotes

Luminotes is dedicated to illustrating complex technical concepts ranging from system design, internals of frameworks, and computing fundamentals to enhancing understanding in areas like compilers, databases, robotics, and programming paradigms. It focuses on breaking down intricate subjects into digestible, illustrated guides.

System Design Computing Fundamentals Programming Paradigms Database Management Software Development Tools Robotics Computer Architecture

The hottest Substack posts of Luminotes

And their main takeaways

AprilTags: Why Robotics Invented Its Own QR Code

7 implied HN points • 09 Feb 24
🕹 Technology Robotics Computer Vision Algorithms Open Source Image Processing
  1. AprilTags are similar to QR codes but are used as fiducial markers in robotics for localization purposes.
  2. AprilTags, created by the reputable robotics lab April, enable systems to localize features in 6 degrees of freedom using a single image.
  3. AprilTags differ from QR codes as they are designed for easy detection in low resolution, unevenly lit, or cluttered images and can detect multiple tags.
Get a weekly roundup of the best Substack posts, by hacker news affinity:

Step By Step Parsing of Mathematical Expressions From Scratch

7 implied HN points • 21 Mar 23
🕹 Technology Mathematics Programming Algorithms Evaluation Implementation
  1. Balancing parenthesis in mathematical expressions can be achieved by using an array or stack.
  2. Identifying the correct operators, like handling "**" for power of, is crucial for parsing expressions accurately.
  3. Converting mathematical expressions to postfix notation simplifies the evaluation process, removing the need for brackets.

libSQL: Diving Into a Database Engineering Epic

2 HN points • 23 Jul 23
🕹 Technology Database Engineering Replication
  1. SQLite is widely used and respected in critical industries due to strong engineering ethics and a commitment to reliability and backward compatibility.
  2. Forking a project like SQLite, as seen with libSQL, requires competent developers, a clear purpose, and a focus on maintaining high standards to ensure success.
  3. libSQL offers innovative features like different wire protocols, virtual WAL, user-defined WASM functions, and replication to the edge, showcasing the project's evolution and dedication to excellence.

Merge Sort And It's Early History

0 implied HN points • 21 Apr 23
🕹 Technology History Programming
  1. Merge sort has an interesting early history related to computer architecture and assembly language
  2. The original merge sort program was designed to test programming languages and computer architecture
  3. Understanding the context behind Neumann's first program is essential to grasping the code and its significance

The World Of Helm

0 implied HN points • 09 Apr 23
🕹 Technology Engineering Kubernetes Programming DevOps Software Development
  1. Helm is like a package manager for Kubernetes, providing templating capabilities and the ability to manage resources and infrastructure.
  2. A Helm chart defines Kubernetes resources in a folder with templates in YAML format, allowing for the creation of releases and packages.
  3. Using Helmfile in combination with Helm simplifies managing multiple charts and deploying different sets of features or values in Kubernetes environments.