SumGuy's Ramblings
The art of wasting time.
Docker, self-hosting, AI/LLM, Linux, and DevOps — explained by someone who learned the hard way. No fluff, no enterprise jargon, just practical stuff that actually works on real hardware.
Recent Posts
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cgroups v2 in Practice: Limits, Pressure, Containers
cgroups v2 unified hierarchy explained: read /sys/fs/cgroup/, limit CPU/IO/memory, use systemd slices and PSI pressure files.
10 min read -
BTCPay Server: Self-Hosted Crypto Payments
Run your own Bitcoin and Lightning payment processor with BTCPay Server, zero middlemen, zero percentage fees, and no Stripe account getting frozen at 2 AM.
12 min read -
Tang & Clevis: LUKS Auto-Unlock Without a Typed Passphrase
Stop typing LUKS passphrases on every headless reboot. Tang + Clevis = NBDE: disks unlock automatically on your trusted network, stay sealed everywhere else.
10 min read -
LibreSpeed: Hosting Your Own Speed Test
Stop trusting speedtest.net numbers. Host LibreSpeed to measure real LAN, VPN, and ISP throughput with zero ads, no telemetry leaks, and a quick Docker deploy.
10 min read -
crun vs runc vs youki: OCI Runtimes Compared
runc, crun, and youki all run your containers, but they differ wildly in startup speed, language, and cgroups v2 support. Here's which to pick.
9 min read -
LibreTranslate: Local Translation Without Google
Run your own translation API with LibreTranslate and Argos Translate. No Google involved, no data leaks, and no surprise per-character billing on your bill.
10 min read -
RAGAS: Evaluating RAG Without Vibes
Stop guessing if your RAG pipeline works. RAGAS gives you reproducible metrics: faithfulness, answer relevance, context precision and recall.
9 min read -
Collateral Freedom: Costly to Block
Protocol mimicry only wins the hiding fight. Learn why relay cascades, domestic hosting, and disposable infrastructure make blocking your traffic expensive.
13 min read -
SearXNG vs Whoogle: Private Search Frontends
SearXNG aggregates 100+ search engines while Whoogle proxies Google cleanly. Here's how to self-host both and which one fits your daily privacy needs best.
9 min read -
Meshtastic vs Reticulum
Meshtastic is a messaging appliance. Reticulum is a whole network stack that happens to run over LoRa. Why comparing the two directly misleads people.
11 min read -
Stirling-PDF: Stop Uploading Your Tax Returns to Sketchy Sites
Stirling-PDF is the self-hosted PDF toolkit your privacy-conscious brain needs, merge, split, OCR, compress, and redact without touching ilovepdf.
8 min read -
AdGuard DNS Sync Across Two Instances
Run two AdGuard Home instances in sync so one dead node does not kill DNS for your whole house. Here is config sync with VRRP failover, done step by step.
11 min read
