Penpot: Self-Host an Open Source Figma
Penpot 2.19.1 on your own server: the Docker Compose stack, what it costs in RAM, what it does better than Figma, and where it still lags. Verdict inside.
Tag: docker
All the articles with the tag "docker".
Homebox: Self-Hosted Home Inventory
Run Homebox in Docker, give every box a QR label and asset ID, attach receipts and warranties, and know when Grocy, Snipe-IT, or a spreadsheet fits better.
Compose include, extends, and YAML Anchors
Your compose.yaml hit 600 lines. YAML anchors, extends, and include each fix a different kind of repetition. What each one does, where it bites, which to use.
Langfuse vs Phoenix: Self-Host LLM Tracing
Langfuse v4 runs six containers and idles near 1.1 GiB of RAM. Phoenix v21 runs two and idles near 0.5 GiB. Here is what each traces and what each costs you.
Postgres in Docker: The shm_size Gotcha
Docker gives Postgres a 64MB /dev/shm. A big parallel query then dies with 'could not resize shared memory segment'. Here is the fix and the trap behind it.
yq: Editing YAML From the Command Line
Install the Go yq, not the Python one. Bump compose tags, patch Kubernetes manifests, merge configs and edit front matter from the shell, plus the gotchas.
PUID and PGID: Container Permission Fights
Why Sonarr, qBittorrent and Jellyfin fight over bind-mounted files, how PUID/PGID works in the image, when Docker's user: fits better, and how to share media.
PrivateBin vs Hemmelig: Secrets That Burn
PrivateBin and Hemmelig both share secrets that self-destruct. Compare encryption, features, and upkeep, plus tested Compose files and the archived-repo catch.
Shlink vs YOURLS: Self-Hosted Short Links
Shlink or YOURLS for your own short-link domain? Docker Compose setups for both, tested, plus API, analytics, multi-domain, backups and a clear verdict.
Self-Hosted Excalidraw, Minus the Cloud
Run Excalidraw on your own server in two minutes. Then see what the stock image still sends to excalidraw.com, and how to host real collaboration yourself.
Docker's Embedded DNS: Inside 127.0.0.11
Docker's embedded DNS at 127.0.0.11 resolves container names, aliases and replicas, then forwards everything else upstream. How it works and how to debug it.
Monolith vs Microservices, Measured
One Go shop app as a monolith and as gRPC microservices on the same pinned CPU cores. The monolith won every throughput test, and Postgres capped some loads.