Klipper is a 3D printer firmware that offloads motion planning calculations from the printer’s microcontroller to a Raspberry Pi or similar single-board computer. The result is faster print speeds (300-500mm/s on a tuned Voron), pressure advance for cleaner corners, input shaping to kill ringing artifacts, and real-time configuration changes with no re-flashing. As of 2026, Klipper paired with a Mainsail or Fluidd web UI running on a Raspberry Pi 5 or Orange Pi 5 Plus is the default stack for anyone serious about 3D printing.

Gemma 4 , released on April 2, 2026, ships four model variants under the Apache 2.0 license. The 31B dense model ranks third on the Arena AI text leaderboard with a score of 1452. The 26B MoE model scores 1441 while activating only 3.8B of its 26B total parameters per forward pass. These numbers raise the obvious question: what architectural decisions make this possible? Three specific design choices - Per-Layer Embeddings (PLE), Shared KV Cache, and Dual RoPE - break from the standard transformer recipe in ways that have real consequences for inference cost, memory footprint, and fine-tuning strategy. The rest of this post covers those mechanisms, the Mixture-of-Experts layer, and the multimodal encoders.

Yes, you can build a self-sufficient, portable Raspberry Pi server powered entirely by the sun - no mains power, no generator, no ongoing fuel cost. With a 30W solar panel, a 12.8V LiFePO4 battery, a charge controller, and a handful of systemd scripts, you can run a weather station, a mesh network node, or a local web server indefinitely from a fence post, a rooftop, or a field station. This guide walks through the math, the parts, and the software that make it work reliably rather than just technically possible.

A smart garden irrigation system built on Home Assistant combines a Wi-Fi-enabled sprinkler controller (commercial or DIY), a rain sensor (physical or API-based), and automations that cancel or adjust watering schedules based on recent rainfall, soil moisture, and the weekly forecast. With the WiseWater integration and Home Assistant 2025.12’s native irrigation scheduling dashboard, this setup is now a genuinely practical alternative to expensive standalone smart irrigation systems that depend on cloud services. Here is how to build one from scratch.

You can find and fix memory leaks in Python using three tools that complement each other well: memray for high-level profiling with flame graphs, tracemalloc from the standard library for line-level allocation tracking, and objgraph for visualizing object reference graphs. The typical workflow starts with memray to identify which functions consume the most memory, moves to tracemalloc to pinpoint exact lines of code, and finishes with objgraph to understand why objects are not being garbage collected. Combined with optimization techniques like generators, __slots__, memory-mapped files, and chunked processing, this approach can reduce peak memory by 50-80% in data-heavy applications.

You can deploy a fully self-hosted Plausible Analytics instance on a $6/month VPS using Docker Compose and a Caddy reverse proxy for automatic HTTPS. The whole process takes under 30 minutes. Once running, you add a single <script> tag to your site and you are done - no cookie banners needed, no personal data collected. Plausible’s tracking script weighs under 1 KB gzipped, stores everything in a ClickHouse database on your own server, and gives you a clean, fast dashboard that shows exactly what you need to know about your traffic.

The short answer is no, the Gemma 4 26B MoE model will not fit entirely in 8 GB of VRAM at standard Q4_K_M quantization - the weights alone require roughly 16-18 GB. But with the right approach, you can run it on budget hardware and get usable interactive performance. The three practical strategies are aggressive quantization (IQ3_XS brings weights under 10 GB), GPU-CPU layer offloading (split 15-20 of 30 layers to GPU, rest on system RAM), and multi-GPU setups (two cheap 8 GB cards via tensor parallelism). Each involves different trade-offs between quality, speed, and hardware requirements.

PCIe bifurcation lets you split a single physical PCIe x16 slot into multiple independent x4 (or x8) logical slots, so you can install two to four NVMe drives using one inexpensive adapter card - typically $20 to $50 for a passive model. Because bifurcation is a CPU-level feature rather than something handled by an external chip, each drive gets its own dedicated lanes with zero overhead. A Gen4 x4 link delivers around 7 GB/s per drive, exactly the same bandwidth you would get from a standard motherboard M.2 slot. For homelab builders who have run out of M.2 slots but still have an empty x16 PCIe slot, bifurcation is one of the cheapest ways to add more NVMe storage.