Sixteen apps · one solo operator

Sixteen small apps, built to run a solo business and an actual life without hiring either a team or a therapist.

Also part of the family: black-knights.fr

01 — Time & Focus

What's due, and what's next — kept separate on purpose.

Chronos

Calendar

App Store

Recurring events that actually understand time zones, plus a late-events feed so nothing overdue quietly scrolls off the bottom of the day.

View on the App Store →

Hercules

Tasks

App Store

No due dates, no guilt. Every task carries an effort score and a value score, so the backlog ranks itself instead of you re-sorting it every morning.

View on the App Store →
02 — Money

Net worth, invoices and receipts — the paperwork of running things solo.

Hephaistos

Net worth

Private

Bank, brokerage and property accounts, every asset still owned, and a monthly snapshot rhythm — net worth without ever opening a spreadsheet.

Plutos

Invoicing

By request

Company details in, a formatted invoice out, delivered straight to the customer's inbox — built to replace the “send an updatable Excel” era.

Email to get access →

Hestia

Property management

By request

Watches property listing sites for new flats worth a look, and once you own the place, turns property, tenant and rent terms into a validated receipt — emailed automatically every month instead of built by hand per rental.

Email to get access →
03 — Communication & Media

Everything coming in, everything going out.

Iris

Email infrastructure

Private

Hosts and manages the email infrastructure — inboxes, DNS, DKIM — for a handful of consulting clients, kept running long after the original project wrapped.

Artemis

Customer comms & podcasts

Private

Automates the emails a growing app sends without anyone thinking about it — welcome notes, password resets, status updates — and doubles as the home for podcast episodes.

Apollo

News

Private

Eleven hand-picked feeds, English and French, deduplicated automatically and folded into one rolling 24-hour digest instead of eleven open tabs.

Zeus

Media pipeline

Private

The unglamorous plumbing that moves media where it needs to go, on schedule, without a hand on the wheel.

Marcus

Knowledge

Private

Somewhere to put what's been learned once, so it's findable the second time — not just the first.

04 — Infrastructure

The plumbing holding the other apps together.

Demeter

File sharing

Web

Send a file, get a link back — no account wall, no sign-up funnel standing between the two.

Open Demeter →

Styx

Automation

Private

The river between every other app — the automations nobody sees, doing the work anyway.

05 — Life & Body

The data behind how a day actually felt.

Ares

Health log

Private

Weight, HRV, resting heart rate, sleep stages, and how the day actually felt — six months deep, cross-tagged with the photos that back the story up.

Hermes

Weather

Private

Twelve cities across three continents, tracked down to the overnight low — built to answer “was it the heat?” before Ares even has to ask. Flight and hotel prices watched alongside the forecast for whichever city wins.

Gaia

Places

Private

A personal atlas — the places worth remembering, kept somewhere more permanent than a dropped pin.

06 — Play

A personal operating system is allowed a couch, too.

Hera

Games

Private

Small games, kept around for the same reason a break room exists — not everything has to be leverage.