Tech Articles
Curated developer articles, tutorials, and guides – auto-updated hourly
Mito23h ago • 6 min read
Your Pi accepts every memory limit you set and enforces none of them
TL;DR: On stock Raspberry Pi OS the memory cgroup controller is disabled, so docker run...
#raspberrypi#docker#linux#containers
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david4d ago • 5 min read
K3s on Raspberry Pi: Why I Said No (And You Probably Should Too)
I tried using Raspberry Pi 5s as etcd members in a k3s HA cluster. SD card fragility, network latenc...
#kubernetes#homelab#networking#raspberrypi
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Mito1d ago • 6 min read
Your Pi's 2 GB swap file isn't swap, and no swap command will tell you that
TL;DR: Raspberry Pi OS Trixie ships rpi-swap instead of dphys-swapfile, defaulting to a zram+file...
#raspberrypi#linux#sysadmin#debugging
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Erick Eduardo Ramos4d ago • 3 min read
Cómo solucionar `Code exited (1)` en Docker en Raspberry Pi
Cómo solucionar Code exited (1) en Docker en Raspberry Pi ¿Por qué ocurre este...
#devops#docker#linux#raspberrypi
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Mito2d ago • 4 min read
Stripe retries a failed webhook for three days, and I found out by getting the same email three times
TL;DR : Stripe webhook delivery is at-least-once, not exactly-once. If a webhook fails for any reaso...
#raspberrypi#cloudflare#stripe#webhooks
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Mito23h ago • 6 min read
sysctl -p says it worked. The next reboot disagrees.
TL;DR: /etc/sysctl.conf doesn't ship on Raspberry Pi OS Trixie, and if you create it, the thing that...
#raspberrypi#linux#systemd#sysadmin
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Mito3d ago • 4 min read
Your Discord bot is ignoring you, and the status output is lying about why
TL;DR : If a self-hosted bot connects successfully, can post to a channel, but never responds when.....
#raspberrypi#cloudflare#stripe#webhooks
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Mito4d ago • 5 min read
The rpi-clone PARTUUID trap: why your Pi 4B silently refuses to boot from a cloned SSD
TL;DR : rpi-clone copies your SD card to a USB SSD beautifully, but it does not update the...
#raspberrypi#cloudflare#stripe#webhooks
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Mito23h ago • 5 min read
A new NetworkManager property broke a decade of headless WiFi scripts
TL;DR: NetworkManager 1.52 (in Trixie) added an autoconnect-ports property. That makes autoconnect-p...
#raspberrypi#linux#networking#sysadmin
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Mito2d ago • 4 min read
Raspberry Pi OS Trixie throws away your logs on reboot, and /var/log/journal exists anyway to reassure you it doesn’t
TL;DR : Raspberry Pi OS Trixie ships /usr/lib/systemd/journald.conf.d/40-rpi-volatile-storage.conf.....
#raspberrypi#cloudflare#stripe#webhooks
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Mito3d ago • 4 min read
Undervoltage doesn’t look like a power problem. It looks like bad Wi-Fi.
TL;DR : On a Raspberry Pi, an inadequate power supply rarely announces itself as “the power is bad”....
#raspberrypi#cloudflare#stripe#webhooks
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ZhengZhiCong1d ago • 5 min read
What's new in MiBee NVR v0.11.0: WHIP ingest, mDNS discovery, and browser-side AI on a Pi
Home security cameras have a dirty secret: the software is the weak link. You buy a decent ONVIF...
#iot#opensource#raspberrypi#software
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Charles5d ago • 3 min read
I Turned My RSS Feeds Into an E-Ink Newspaper — and It's Better Than Any App
I Turned My RSS Feeds Into an E-Ink Newspaper — and It's Better Than Any App A developer named Jonn...
#raspberrypi#diy#productivity#hardware
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Oza Parth4d ago • 2 min read
Day 2 — It Just… Worked
Turns out I was solving the wrong problem the whole time. Yesterday I ended on a cliffhanger: redo....
#esp32#raspberrypi#software#iot
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Lefteris Giannaros2d ago • 3 min read
Bridging a Real PS1 to RetroAchievements With a Raspberry Pi Pico 2W
Spent the week trying to get RetroAchievements working on a real PS1. What if we could read PSX...
#raspberrypi#retroachievements#hardware#python
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Tejas2d ago • 3 min read
Simple Easy Voice Assistant using Raspberry Pi 1
Build a simple, low-cost voice assistant & smart note logger using a Raspberry Pi 1 B+, Faster-Whisp...
#raspberrypi#ai#python#devops
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AbeMarkn2d ago • 5 min read
Vibe Coding: Building a Raspberry Pi Pico I2S Audio Player Without Writing Code
How I built an I2S audio player on Pimoroni Tiny2040 purely through AI prompts, and overcame roadblo...
#micropython#raspberrypi#ai#embedded
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Oza Parth4d ago • 3 min read
Day 0 — An Embedded Story Begins
Beyond the Tutorials: Embracing real hardware, inevitable mistakes, and building from...
#esp8266#raspberrypi#esp32#software
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Andrei Toma4d ago • 5 min read
Top Alternative to Cisco Meraki for Branch Office Security
Looking for a cost‑effective, zero‑trust solution to replace Cisco Meraki in your branch offices? Di...
#raspberrypi#security#opensource#ids
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Oza Parth4d ago • 3 min read
Day 1 — The Pi Zero That Wouldn’t Say Hello
Re-flashing, Wi-Fi configs, and an IP address that refuses to exist. Status: 🔄 In Progress...
#raspberrypi#esp32#iot#software
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circuitrocks3d ago • 2 min read
Run Gemma AI Offline on a Raspberry Pi 5 with Google's LiteRT
Run Gemma AI Offline: Google's LiteRT runs Gemma models on a Raspberry Pi 5 at 99 tokens/sec prefill...
#raspberrypi#edgeai#gemma#litert
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circuitrocks5d ago • 2 min read
Raspberry Pi Book of Making 2027: A Weekend Build Queue
Raspberry Pi Book Making: The Book of Making 2027 collects a year of magazine builds: origami paper ...
#raspberrypi#raspberrypipico#diyelectronics#pcbdesign
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Andrei Toma2d ago • 7 min read
Best Fortinet Alternative for Distributed Networks: HookProbe
Discover how HookProbe delivers enterprise‑grade edge IDS/IPS on a $50 Raspberry Pi, offering a true...
#opensource#security#raspberrypi#linux
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Andrei Toma1d ago • 11 min read
Fixing pfSense eBPF XDP Filter Cannot Bind Interface Errors
Learn how to fix the pfSense eBPF XDP filter cannot bind interface error with step-by-step troublesh...
#raspberrypi#opensource#ids#security
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