Florian Weil

Trying to master a slowly and thoughtfully craftspersonship way of life

[Tom Dörr @tom_doerr]

Wi-Fi motion detection without cameras

https://t.co/4t8bf1jnk1

[pilcrow @pilcrowonpaper]

Announcing my auth book! A completely free online resource on implementing auth with fully-featured examples

Over 10,000 words right now and I still have plenty of things to write about

https://t.co/ysEPNHRBnZ

[CNX Software @cnxsoft]

Modular @Meshtastic gateway HAT for the Raspberry Pi 4/5
https://t.co/WuU4cmaeiz

@RAKwireless WisMesh Pi HAT RAK6421 features two IO slots for WisBlock modules such as RAK13300 or RAK13302 (1W) LoRa modules, and four sensor slots.

The company provides a Linux OS image preloaded with meshtasticd (the Linux-native Meshtastic service) to enable always-on Meshtastic base stations, MQTT gateways, and backbone relay nodes.

[Tom Dörr @tom_doerr]

Self-hosted DNS server blocking ads and malware

https://t.co/2hdPfOP4f3

[Firefox for Web Developers @FirefoxWebDevs]

Web Serial landed in Firefox 151! Here's how it works, and what you can do with it: https://t.co/pBx5lo9wmA

[AlgoMaster.io @algomaster_io]

15 Must-Know Software Design Patterns:

1. Singleton
2. Factory Method
3. Builder
4. Adapter
5. Decorator
6. Facade
7. Proxy
8. Composite
9. Observer
10. Strategy
11. Command
12. Iterator
13. State
14. Template Method
15. Chain of Responsibility

♻️ Repost to help others in your network

[Ivan Velichko @iximiuz]

Networking 101: IP and Routing 🛠️

Prepared a hands-on exercise to practice configuring connectivity between two subnets with a shared router node.

Can you solve this problem? https://t.co/k2seN25Ewe

[Alex Xu @alexxubyte]

git fetch vs git pull vs git pull --rebase

[Ivan Velichko @iximiuz]

If you wanted to play with the fresh Kubernetes release, I just upgraded all iximiuz Labs playgrounds:

- Kubernetes 1.36
- Ubuntu 26.04
- Fedora 44

And a few dozen more wait for you at https://t.co/0wtSNmbLlR

[MIT CSAIL @MIT_CSAIL]

61 years ago this month, the Fast Fourier Transform was created, a powerful tool for image compression & data analysis.

Watch a classic MIT breakdown of FFT, perhaps the most-taught algorithm at the Institute: https://t.co/R7zdspBswx

v/@MITOCW

[maker.io @MakerIO]

How to use an oscilloscope

Get started here: https://t.co/GXrydablTu

#electronics #engineering

[adafruit industries @adafruit]

KiCad Breadboard Builder

https://t.co/hDKpiQXh5b

[Dhanian 🗯️ @e_opore]

DEVOPS LAYERS

PLANNING LAYER
→ Defines project goals, requirements, and timelines
→ Involves collaboration between development and operations teams
→ Includes backlog creation, sprint planning, and task tracking
→ Tools: Jira, Trello, Azure Boards

DEVELOPMENT LAYER
→ Focuses on writing, building, and managing application code
→ Implements features, bug fixes, and enhancements
→ Uses version control for collaboration and tracking changes
→ Tools: Git, GitHub, GitLab, Bitbucket

BUILD LAYER
→ Converts source code into executable artifacts
→ Automates compilation, dependency management, and packaging
→ Ensures consistent builds across environments
→ Tools: Maven, Gradle, npm, Webpack

CONTINUOUS INTEGRATION (CI) LAYER
→ Automatically integrates code changes into a shared repository
→ Runs automated tests to detect issues early
→ Ensures code quality and stability
→ Tools: Jenkins, GitHub Actions, GitLab CI

TESTING LAYER
→ Validates application functionality, performance, and security
→ Includes unit tests, integration tests, and end-to-end tests
→ Ensures reliability before deployment
→ Tools: Selenium, Jest, Cypress

RELEASE LAYER
→ Prepares and manages application releases
→ Handles versioning and release approvals
→ Ensures smooth transition from development to production
→ Tools: Docker, Helm

DEPLOYMENT (CD) LAYER
→ Automates deployment of applications to production environments
→ Supports continuous delivery and continuous deployment
→ Reduces manual intervention and deployment errors
→ Tools: Kubernetes, AWS CodeDeploy, ArgoCD

INFRASTRUCTURE LAYER
→ Manages servers, cloud resources, and networking
→ Uses Infrastructure as Code (IaC) for automation
→ Ensures scalability and high availability
→ Tools: Terraform, AWS, Azure, Google Cloud

MONITORING AND LOGGING LAYER
→ Tracks system performance and application health
→ Collects logs and metrics for analysis
→ Enables alerting and proactive issue resolution
→ Tools: Prometheus, Grafana, ELK Stack

SECURITY (DEVSECOPS) LAYER
→ Integrates security practices throughout the DevOps lifecycle
→ Performs vulnerability scanning and compliance checks
→ Ensures secure code, infrastructure, and data
→ Tools: Snyk, OWASP ZAP, Vault

FLOW OVERVIEW

DEVELOPER
→ DEVELOPMENT LAYER
→ BUILD LAYER
→ CI LAYER
→ TESTING LAYER
→ RELEASE LAYER
→ DEPLOYMENT LAYER
→ INFRASTRUCTURE LAYER
→ MONITORING LAYER

This layered DevOps approach ensures faster delivery, reliability, scalability, and continuous improvement.

Grab the DevOps ebook: https://t.co/fFkAVQgVJX

[Alex Xu @alexxubyte]

API Concepts Every Software Engineer Should Know

[Tom Dörr @tom_doerr]

Local-first Kubernetes dashboard with topology and real-time updates

https://t.co/W2qsKua7Pv

[Ivan Velichko @iximiuz]

Docker Hands-On: Transfer Container Images to an Air-Gapped Environment 🐳

Your team is preparing to deploy a new application stack to an on-premise server, but the server is completely isolated from the public Internet - a hardened, air-gapped environment with no route to any external network or container registry.

Can you find a way to transfer the required container images to the air-gapped server?

Practice: https://t.co/SbY2Z3HtVZ

[Atal @ZabihullahAtal]

Stanford just released a 1.5-hour lecture on “LLM Architecture.”

This is the exact thing systems engineers at Anthropic and OpenAI require to understand at a deep level.

Give it some time.

This might be the highest-ROI learning you do this month.

[FFmpeg @FFmpeg]

FFmpeg is moving to Rust 🦀

Our use of C and Assembly in FFmpeg has been an unacceptable violation of safety.

FFmpeg will be running 10x slower - but we're doing it for your safety.

All your videos will appear green - safety first, working software later.

[Tom Dörr @tom_doerr]

Kubernetes security learning cluster

https://t.co/EcMynenWfS

[Alex Xu @alexxubyte]

A Cheat Sheet on The Most-Used Linux Commands