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Author: D-Central Technologies

D-Central Technologies is a team of Bitcoin mining technicians and hardware engineers based in Laval, Quebec. Since 2016, we have repaired over 2,500 ASIC miners, manufactured open-source mining accessories, and published technical guides on Bitcoin mining hardware. Every article is written and reviewed by our repair lab team.

AI

Connect Your Self-Hosted AI to Home Assistant, Obsidian, Shortcuts

ChatGPT is worth its monthly fee because it powers your tools. Your local Ollama speaks the same OpenAI API. Here’s how to wire Home Assistant voice, Obsidian notes, VS Code Continue, and iPhone Shortcuts to your Hashcenter — no subscriptions, no cloud.

Antminer

Antminer S9: Is It Still Worth Mining in 2026?

As we approach 2025, the question of whether older Bitcoin mining hardware, such as the Antminer S9, still holds value remains a topic of debate within the cryptocurrency community.

AI

LM Studio vs Ollama vs llama.cpp: Which Runner for Plebs?

Three excellent open-source runners. Three different plebs. llama.cpp is the foundation Gerganov built. Ollama wraps it for daemon simplicity. LM Studio wraps it in a polished GUI. Here’s the 15-minute decision guide.

AI

Heating Your Home With Inference, Not Just Hashing

Bitcoin ASICs dump nearly all their power as heat — which is why mining heaters are a category. GPUs doing LLM inference follow the same thermodynamics. If you’re going to heat your home electrically, you may as well be running Llama 3.1 too.

ASIC Hardware

Are You a Bitcoin Miner or Just Throwing Away Money?

Are you still paying sky-high hosting fees just to let your mining heat vanish into thin air? For many Bitcoin miners, hefty monthly invoices and wasted energy are part of the “business…

AI

BTC-AI Public Companies: The Hashcenter-to-Tokens Pivot

Hut 8, Core Scientific, IREN, and TeraWulf are leaving Bitcoin Hashcenters to become AI datacenter operators. It’s a rational pivot for public companies — and it makes sovereign AI on pleb-owned hardware more important, not less.

AI

Open WebUI: The ChatGPT Experience, But Yours

The terminal is fine for testing, unusable for daily driving. Open WebUI is the ChatGPT-style interface that plugs into your local Ollama — multi-user, RAG, web search, reachable from anywhere over Tailscale. One Docker command; your Hashcenter becomes your private ChatGPT.

AI

ComfyUI for Plebs: Your First Local Image Generation

You installed Ollama and got local chat. Time for local image generation. ComfyUI runs SDXL, SD 3.5, and FLUX.1 on hardware you already own — the Midjourney/DALL-E subscription you can cancel. Here’s the pleb on-ramp.

ASIC Hardware

Unleash 2.5 TH/s Power with NerdQaxe+

The evolution of Bitcoin mining has been profoundly influenced by the principles of open-source development. Open-source projects have democratized access to mining technology, allowing…