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Kairoi Co.

Precision, efficiency & craft.

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About

Where education, technology, and art meet

Technology without art is cold. Art without education is shallow. Education without technology is limited. We work at the point where all three converge.

We build the engines ourselves, and each one gives you the answer and the way to check it. We make things with them under our own name, Cycles Arc, and put them to work for organisations under theirs.

Made to earn their place in your life.

Our software

The engines

Two families. One says where things are and when. The other says how little will do — and how you know.

Nature

  • Sky

    Planets, the Moon, eclipses, an 8,870-star catalogue with deep-sky objects and meteor showers — positions, phases, rise and set, and what is visible tonight from a given place and moment. The same engine keeps the calendars: Hijri, Hebrew, Chinese, Iranian and the church computus, computed rather than tabulated.

    What you getPositions on the JPL DE441 ephemeris.Apparent of date, for the place you name.Five calendars, computed — never tabulated.

  • Earth

    Ground truth for a place: elevation and horizon, resolved against our own survey index rather than a third-party lookup, for any coordinate.

    What you getElevation and horizon, any coordinate.Our own survey index, not a lookup.Dry land and sea floor alike.

  • Body

    The body clock: light exposure, sleep and wake timing, and travel across time zones, computed from the sun at the person's own place and the dates in question.

    What you getSleep and wake timing from your own sun.Light exposure windows through the day.Time zones crossed, day by day.

  • Weather

    Forecast and climate figures ingested from named models and delivered for the same place and moment as every other engine, so sky, body and weather can answer one question together.

    What you getForecast and climate for one place.Named models, ingested whole.The same instant as sky and body.

  • Light

    Daylight compliance for buildings: vertical sky component, daylight factor, sDA and ASE, and right-to-light — computed for the site, the orientation and the obstruction.

    What you getVSC, daylight factor, sDA, ASE.Right-to-light for the site as built.Reproducible by the authority reading it.

Efficiency each allocation with the bound beneath it

  • CloudBalanceComing soon

    Kubernetes pod placement, with the busiest node carrying as little as it can — in milliseconds, and it can tell you when nothing lower was available.

    What you getPod placement in milliseconds.The busiest node as low as it goes.The bound beneath it, to check against.

  • FarmBalance

    Power-and-cooling allocation for large compute fleets: machines to circuits and rooms at a fixed price, delivered as a Fleet Book that sets out the allocation, the moves to reach it, and the floor beneath them — with the workings that hold that floor, so it can be checked rather than trusted.

    What you getMachines to circuits and rooms.The moves that get you there.A Fleet Book, re-computable from its hashes.

  • CargoBalanceComing soon

    Freight consolidation: an order packed into containers under weight and volume, groupage per sailing, and the re-book when a carrier rolls your allocation — each answer with the bound beneath it.

    What you getAn order packed into containers.Groupage per sailing.An Operations Book that re-checks itself.

Brands

Cycles Arc

The sky, the body, the earth and the weather — measured for one place, one date, and made into something you keep.

Cycles Arc

Cycles Arc

Every date in it computed from the real sky.

On the shelfapps, print, feeds, tools

The engines above, turned into finished things for people. Four of them measure the sky, the body clock, the earth and the weather for any place and any date; one press turns each measurement into the object needed.

  • Apps — a house app for the day's sky, and small apps for one job each
  • Printed objects — plates, maps, almanacs, planners, journals, calendars
  • Feeds — calendar subscriptions that carry the computed dates into a phone
  • Tools — free, on the site, built to the standard of everything sold
  • The press for organisations — the same pages, under another name

Everything on the shelf was computed here, and every page says with what.

How to check us

  1. Every answer carries its evidence. A position names its ephemeris; a time carries its solar angles; a chart returns its derivation; an allocation returns the bound beneath it; a delivered book records the hashes of its inputs and can be re-verified against them.
  2. Every claim is a measurement. Sky positions are checked against the ephemeris authority's own test vectors; allocations are checked against the bound beneath them. A figure on any of our pages was taken, not asserted.
  3. From scratch. Every engine is our own code, written for its own subject and held to the same standard of evidence as the two points above.
  4. Only what exists. We do not list an engine before it is live, and we say plainly when a subject is served by a tool and not yet by a product.

And, still, interesting things for curious people — that is why we started, and it has not worn off.

Services work we take on for organisations

  • Bespoke software

    An engine written for your problem, from the mathematics up: carried to the precision the problem demands, and shipped with its own verification so your users can check it the way ours can. We have done this for the sky, for buildings and for allocation; the method does not care about the subject.

    Write to enterprise@kairoico.com about bespoke software
  • Computed publishing — the press under your name

    Almanacs, prayer and observance timetables, planners, plates, maps, sky and daylight reports, calendar feeds — every figure computed by us for your places and dates, typeset by us, carrying your mark and our method note. For publishers, mosques and congregations, councils, observatories, schools and brands that want a product without building a computation team.

    Write to enterprise@kairoico.com about publishing
  • Operations studies

    Send the files that describe your operation — a fleet and its circuits, a cluster's pods, a quarter of packing lists — and receive a book that sets out the allocation, the moves to reach it, the bound beneath it, and the hashes that let anyone re-compute it. Fixed price per study; no meter, no seat, no system to install.

    Write to enterprise@kairoico.com about a study
  • Integration into your product

    An engine wired into your app, your scheduling system, your planning workflow or your reporting, with the evidence lines carried through to your users. We do the integration work, not only the key. Licences at volume, fixed price where the engine's own site says so.

    Write to enterprise@kairoico.com about an integration
  • Daylight and light studies for buildings

    Vertical sky component, daylight factor, sDA and ASE, right-to-light — computed for a site, an orientation and its obstructions, delivered as a study the authority can reproduce from the method stated on the page. For architects, planning consultants and developers.

    Write to enterprise@kairoico.com about a daylight study

One address for all of it: enterprise@kairoico.com. Say what you have and what you need; we reply with whether it can be answered to that standard and what it costs to get it.

Company

The company

Kairoi Co. OÜ
Sakala tn 7-2, Kesklinna linnaosa
Tallinn, Harju maakond, 10141
Estonia
Registry code 17410529

hello@kairoico.com

The people

  • Erick X. Llamas Founder, chief executive
  • Heidi Palmer General manager, cofounder
  • Nicole Falla Design and social media, cofounder
  • Hannah Cremona Business strategy, cofounder
  • Thomas Lowe Sales and business development, cofounder