◆ Research lab & studio · Athens, Greece
What can one person build when they run agents instead of apps?
I’m Savvas Konstantinidis. Years of writing, a homelab that grew to thirty-two containers, and a stack of software that mostly runs my own life — a family assistant, a scheduling service, a control room for a fleet of AI agents. Most of it is unfinished. All of it is real.
Three ways in (for you to show interest)
Pick the door that describes you.
Thirty-three years in banking technology. Eight of them buying it.
Director-level technology sourcing and procurement, and a practitioner who still reads the YAML. The two halves are the same skill: knowing what you’re actually buying.
NOWDirector, Strategic Sourcing of TechnologyBEFOREJPMorgan · Bank of Cyprus · PiraeusALSOEnterprise monitoring, vendor negotiation, homelab ops
Most of what I build runs my own life. Some of it, you can drive.
Every project is written up honestly — what it does, what broke, and what I’d do differently now. A few of them have a live demo you can open in a browser.
- Travel League — friends-only travel log & XP game
- BookMe — a self-hosted scheduling replacement
- Agent Cockpit — control room for an agent fleet
one shared login · synthetic data — nothing of mine in there
The homelab story, told properly.
Thirty-two containers on hand-me-down hardware. An AI assistant that remembers years of context. A house that argues with me about the shopping list. I write it all down, including the parts that failed.
READThe homelab — what broke, what I'd keepWRITE215 posts, archived but aliveMAKEThe studio — games, books, experiments
▸ The experiments — ranked by you
Things I build because nothing off the shelf fit. Enough interest and one becomes a real product — and what tells me which is not the votes, it is how many people ask to be let in. Each one has a page of its own: click the name.
- 01no votes yetproduct
MyPetLife
An all-round pet management app for iOS and Android. Pet profiles, vet and vaccination tracking with booster reminders, medications, feeding logs, weight and a photo journal — for a dog, a cat or a rabbit, all in one place. On the App Store and in real hands.
- 02no votes yetusable now
BookMe
A booking and scheduling tool I built and self-host it. It began as a Calendly replacement and became the thing my flat viewings actually run on — a public booking page with no account needed, double-booking prevented in the database rather than the interface, and confirmations sent from my own server. Live and in daily use.
- 03no votes yetusable now
GatherApp
A social planning platform, because getting a group to agree on a time and a place is a problem software keeps failing at. Propose something to your friends, let them show interest and availability, then organise the details in one place instead of losing them in a group chat. Live — try it in a browser.
- 04no votes yetexperiment
MealBrain
A complete kitchen management system: recipes, pantry stock, shopping and weekly meal plans, all joined up for a household of five. It plans against what is already in the cupboard rather than from scratch. In production since June 2026 and used every day.
- 05no votes yetexperiment
Agent Cockpit
A control room over an AI setup that outgrew its chat windows — every agent, session, transcript and provider in one view, with an audit trail. I built it because I could no longer answer what was running, what it had done last week, or what it cost. Built and in daily use.
- 06no votes yetusable now
ZeBill
A self-hosted personal finance app: envelope budgeting, accounts, transactions, net worth and cash flow, on my own server. Built for a household deciding whether it can afford a holiday, not for a business closing its books. In active use against real numbers.
- 07no votes yetexperiment
Personalised Audio Briefing
A podcast that knows your life. A daily spoken briefing assembled from my own calendar, household and project state plus news filtered by interest, delivered as a voice message so it needs no app and no screen. It exists because the commercial service I relied on closed in May 2026. Working, in daily use.
- 08no votes yetexperiment
The Bookie
Put your money where your mouth is — play money. A social prediction game played entirely inside a group chat, where an AI game master sets the odds, resolves the bets when reality settles the question, and keeps the leaderboard. Running in seasons.
- 09no votes yetexperiment
Keepr
Own your stuff — every thing, every place, every warranty. Items with a home, warranty expiry so a claim is not discovered too late, and maintenance schedules for the things in a house that need them. An inventory you actually keep updated, and that my agents can query. In development.
- 10no votes yetexperiment
Travel League
Bragging rights, gamified. A friends-only travel log that scores itself — XP for a trip, leagues that rank friends against each other, and a map that keeps the receipts so a claim can be checked. It is replacing an argument rather than a subscription. Early — the foundation is built.
- 11no votes yetexperiment
Tapfolio
A 3D-printed NFC keyring. Tap it against a phone and the owner's details appear, with no app needed by the person tapping. One permanent address per tag, so a lost tag is disabled rather than hunted down, and per-field visibility so you choose what is shared. In design.
- 12no votes yetexperiment
Home Electricity
Whole-house electricity consumption and cost, read from the Home Assistant sensors I already run, correlated against the ΔΕΗ bill so the total stops being a surprise. Running daily.
- 13no votes yetexperiment
Family Hub
The family's hub: chores and points with a leaderboard, an AI chat that adds tasks and sends reminders, the family calendar, and a house guide for the things nobody remembers. Live, and the family uses it.
- 14no votes yetexperiment
Explorra
A personality-driven travel platform — a curated knowledgebase of destinations and experiences, matched to who you are by an engine that designs editable itineraries. Foundation built, then paused.
- 15no votes yetusable now
QikStart
Records motorcycle rides from the phone's own GPS and motion sensors: distance, speed, stops and how long they lasted, a smoothness score, fuel top-ups with a cost history, and a strip that leans with the ride. Phone-only — nothing is uploaded. Built and on my phone.
- 16no votes yetusable now
FeelTally
A sentiment log — one tap to record how a day actually felt, building a private record of mood across months. No backend, no account, nothing leaves the device. Live and in my own testing.
One vote per visitor, counted on my own server. No trackers, no third parties.
One email, when something is actually worth saying.
No schedule, no noise, no funnels. Unfinished work included — that’s the interesting part.
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