Bartosz Makosch

          +--------------------------------------------------+
          |.-----------------------°------------------------.|
          ||   Hello, world!                                ||
          ||   Feel free to contact me via:                 ||
          ||   i..                                          ||
          ||   .J.                                          ||
          ||   Mail@:~$pqo hi@brtsz.de <           .com     ||
          ||   .i.                             PGP-KEY      ||
          ||   ..i                                          ||
          ||   Links@:~$tw bio.link/bartosz a      com      ||
          ||   .j.                                          ||
          ||   I..                          (:              ||
          ||   www                                          ||
          |+------------------------------------------------+|
          +-----....--------------------------------....-----+
          ______....________________________________....______
         /   / =========================================== \ ß \
        /   / ============================================= \   \
       /   / =============================================== \   \
      /   / ========================🔴===================== ↑ \   \
     /   / =============================================== ←↓→ \   \
    /                         ______________                        \
   /                         /              \                        \
  /                         /________________\                        \
 /                         /________|_________\                        \
/_______________________________________________________________________\
\_______________________________________________________________________/
                

What I build

Small, sharp tools that do one thing and can prove they did it. Newest first in each group. The source for all of them is on GitHub; this list and llms.txt are generated from the same file, so they cannot say different things.

LLM & agent tooling

Instrumenting, measuring and fact-checking what models actually do

• wallii — append-only message wall for agents: NDJSON feed plus a CLI to post, tail and browse it.
• claudii — statusline for Claude Code: session cost, context %, rate limits, model health. Pure bash + jq, zero daemons. live
• check0r3000 — LLM extraction of comparable facts out of insurance terms, with a model benchmark built into the tool.
• bumpii — read what actually changed in the tools you run, judged against how you actually use them.
• gateii — minimal self-hosted proxy in front of LLM APIs — OpenResty, Prometheus, Grafana.
• comparereleaseii — fact-check release notes against the actual code diff — GitHub, Forgejo, GitLab or any git clone. live
• cc-insomnii — a bedtime-shaming statusline for Claude Code.

Backup, recovery & proof

Systems that assume the failure already happened and stay useful anyway

• stattii — attestation over an event calendar — cancellations propagate outward with delivery proof.
• how-small-can-we-go — trust-golf: one champion per task, dethroned by needing less trust. Measured, never claimed. live
• baaackaaab — one-way, ransomware-resistant iCloud backup: Drive and Photos into an append-only restic store.
• revertii — update a service with the way back built in: snapshot, dead man's switch, health-check, revert.

Local-first web apps

Static pages that keep your data in your own browser

• putzii — cleaning schedule shared by capability link, with QR check-in. No backend at all. live
• gymii — floor-plan your gym, log sets against numbered machines. Offline-first, data never leaves the device. live
• kuvertii — read what an email header says about you — who it was really addressed to, where the unsubscribe link leads. live
• musiclinkii — turn one music link into links for every streaming platform. live
• shieldchipiii — stone-chip logbook for your windshield, so the insurance conversation has a record instead of a memory. live
• app-icons-generator — every iOS, macOS and watchOS icon size from one 1024px PNG — CLI and browser. live
• db-wallet — drink tracking wallet for the crowd at bitcircus101.de and Datenburg e.V. Bonn. live

Terminal & macOS

Things that live in a shell, or in the menu bar next to it

• pegel-visual — live ASCII water levels for German rivers, with an optional aircraft overlay from your own ADS-B receiver. live
• youtubehistii — local YouTube watch-history analyzer — topics, and consume vs. learn. Fully on-device.
• epcii — EPC QR code (GiroCode) generator — one static binary with its own QR encoder core.
• pwdtintii — the terminal background takes its colour from the directory you are in. zsh, bash, fish, tmux-aware.
• vpnii — VPN status in the zsh prompt, on top of WireGuard and Tailscale.
• audioctl — switch macOS output and input devices, volume, mute and sample rate from the CLI.
• KeebLock — locks the keyboard while you clean it, with animations worth the thirty seconds.
• git-times-live — a standalone live broadcast TV channel for your git activity. live

FreshRSS extensions

Four small extensions for the reader I actually use every day

• NoteDrop — drop notes and links on one device, copy them on another with one click.
• ClickHistory — keeps a history of the article links you actually opened.
• ShareViaQRCode — a large QR code for the current article, so a phone can pick the link off the screen.
• ExitReaderView — a floating button to leave the reading view in one click.