Systemd Service Not Starting? How to Fix It
Systemd service not starting? Read journalctl the right way, fix the five causes behind most failures, and get the unit back to active in minutes.
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GGUF Quantization: Which Level Should You Use?
GGUF quantization levels compared: Q4_K_M vs Q8_0 perplexity, file size math, VRAM per level, and one rule for picking the right quant for your GPU.
Git Cherry Pick: Multiple Commits, Branches, Conflicts
Git cherry-pick explained: copy a commit from another branch, pick multiple commits or a range, fix conflicts, and know when merge or rebase fits better.
Cron vs systemd timers: which should you use?
Cron vs systemd timers compared: syntax, logging, catch-up runs and dependencies — plus a decision table so your next scheduled job lands in the right place.
llama.cpp vs Ollama: Which Should You Run in 2026?
llama.cpp vs Ollama: Ollama wraps llama.cpp for convenience, raw llama.cpp wins on speed and control. Benchmarks, GPU offload flags, and when each wins.
Git Remove Untracked Files: Safe git clean Guide
Git remove untracked files safely with git clean: dry-run first, -fd for directories, -x for ignored files — plus why git clean isn't removing anything.
Rsync vs SCP: Which Linux Copy Command to Use
Rsync vs scp: rsync resumes a dropped transfer and copies only what changed — scp just copies. Speed numbers, the flags that matter, and when scp still wins.
How to Run GGUF Models Locally: Ollama, llama.cpp & vLLM
How to run GGUF models locally: one-line Ollama pulls, llama.cpp straight off a Hugging Face URL, and how to pick the right quant for your VRAM.
Git Sync Fork With Upstream: 3 Safe Methods
git sync fork with upstream three ways: the two-command pull, a rebase for clean history, GitHub's sync button — plus fixes when your fork won't sync.
ss vs netstat: Which Linux Port Command to Use
ss vs netstat: netstat is legacy on modern Linux, and ss replaces it flag for flag. Get the mapping table, find the process behind any port, and a cheat sheet.
Best Local LLM for Coding: 8GB to 24GB VRAM Picks
The best local LLM for coding by VRAM bracket: Qwen3 Coder vs DeepSeek at 8, 12, 16 and 24 GB, the right quant per card, plus a runnable Ollama setup.
Git Undo Last Commit: Keep Changes, Stay Safe
Git undo last commit the safe way: keep the changes with reset --soft, unstage with --mixed, or fix a pushed commit with revert — exact commands for each.
journalctl Cheat Sheet: Tail, Filter and Follow Linux Logs
journalctl cheat sheet for real work: tail logs, grab the last 100 lines, follow a live service and filter by unit or time — copy-paste commands that just work.
Ollama vs LM Studio: Which Local LLM Tool Should You Use?
Ollama vs LM Studio compared for real dev work: install, GPU use, speed and API serving — with runnable commands so you can pick the right tool today.