Greek grocery baskets got an optimizer
Built and deployed Καλάθι Τιμών Supermarket, a React planner that reads the live PosoKanei catalog, compares full baskets, and finds one-to-four-stop buying plans.
Thessaloniki, Greece / GitHub since 2012 / 101 public repos / June 2026
Spiros Raptis
Agentic Systems Engineer / Automation Workbench / Past Trading-System Work
Lately I have been turning useful messes into durable small systems: Greek supermarket baskets, mentor-review automation, health trackers, private media clients, remote-machine guards, and the occasional past-markets lab.
Now building
Small systems that make the work visible.
My projects usually start as a script that solves one sharp problem: comparing a real supermarket basket, queue visibility, faster screenshots into Codex, private media playback, health snapshots, display recovery, or a local dashboard that says what is actually true.
The pattern is simple: expose the state, keep the workflow inspectable, write the receipt, then earn the abstraction only when repeated use proves it belongs.
Recent dispatches
Shipped work from the last few weeks.
Udacity automation got a closeout ladder
Hardened mentor-review tooling around preflight gates, queue-overview proof, archive-backed receipts, stale dashboard state, and cleanup signals.
RepoPlex moved from web to Android
Built a native Android client on top of the private Plex front door, keeping subtitles, remote playback, and living-room ergonomics in view.
RepoWithings tracking split across devices
Kept the Android tracker useful while adding iOS bridge import paths for stale Apple Health scale data and sleep snapshots.
RepoLocal ops grew companion apps
Added macOS and iOS helper surfaces for automation workflows, prioritizing canonical state over whatever a dashboard happens to remember.
agenticspiros.com went public
Built the static site, wired DNS and HTTPS on the SecurityTech server, and published the source as a public repo.
RepoSelected systems
Practical tools with visible machinery.
posokanei-basket-demo
Live Greek supermarket basket planner using PosoKanei catalog data, local basket math, and one-to-four-stop optimization.
agenticspiros.com
This site: plain HTML/CSS, public source, Plesk-hosted, and used as the front door for small demos that are useful enough to share.
udacity-mentor-dashboard-extension
Browser tooling for mentor workflows, daily totals, queue automation, and stale-state recovery.
withings-scale-tracker-android
Native Android tracker for weight and sleep signals, built around the real sync path.
plex-open-web + Android
Self-hosted Plex browser UI and native Android client for private playback, subtitles, and remote access.
CodexScreenshotBridge
Swift menu-bar app that moves screenshots straight into a Codex workflow.
coinbase-perps-lab
Past Rust lab and local dashboard for inspecting Coinbase INTX perpetual positions.
Operating principles
Guardrails before fireworks.
-
01
Make the state visible.
Dashboards, logs, receipts, and diffs beat vibes when systems get real.
-
02
Start with scripts.
Automation should earn complexity by surviving repeated use.
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03
Use AI without hiding the logic.
Agents are useful when the boundary, evidence, and rollback path are obvious.
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04
Treat markets work like software.
Rules, snapshots, stops, and journals were the useful artifacts.
Toolchain
Python, JavaScript, Rust, Swift, Shell.
Linux
Docker
tmux
CLI tools
React/Vite
PHP proxies
Catalog APIs
Browser extensions
Android
iOS companions
Systemd timers
Private media
LLM workflows
Trading systems
Local dashboards
Contact
Send the repo, the constraint, and the thing that keeps breaking.
I am most useful around practical open source, automation, agent workflows, remote-machine weirdness, health/media tools, and the occasional lesson from past markets tooling.