Arki

Arki turns your chat assistant into your everyday chief of staff.You talk. Arki keeps track.

Your calendar, the tasks you picked for today, your training and the week's meals, in one place. Everything else you just tell Claude, and it lands where it belongs.

An iPhone home-screen widget for Monday 7 September: four calendar events, three tasks for today and the day's training
Your home screen in the morning: the calendar, the tasks you picked for today and today's training. The calendar comes in read-only, from your calendar's private address. On iPhone, through the free Scriptable app.

During the day

Say it once, and it lands in the right place

No app to open, no form to fill in. Something to do becomes a task, something running low goes on the shopping list, and where you put the spare key becomes a note you can ask about later.

A real deadline stays a deadline. “Sometime in November” is a start date: the task stays out of the way until then, and it never turns red.

I should book the dentist sometime in November

The task “Book the dentist” is saved, starting Sun 1 Nov. It stays off the list until then.

we're low on coffee

Coffee is on the shopping list.

remember that the spare key is under the letterbox

Saved as the note “Spare key”, visible to the whole household. It is in Unsorted for now, since no folder fitted.

The Tasks page on a phone, Plan view, scrolled down: the tasks that live in the autumn-jobs note and the trip note, each with its date, and under Later the dentist, which starts on 1 November
The Plan page the same evening, further down: the tasks that live in notes (the autumn jobs, the trip), and under Later the dentist, waiting for November with no red date. Today and This week, above, are your picks, not the app's.

Months later

Ask, and it turns up

Say what you did, with a photo, and it becomes a note where it belongs: one run-on sentence after a job comes back as steps with the picture in the right place. Months later, ask how you did it, and the steps and the photo come back.

Before it writes, Arki looks at what you already have, and the chat says what it did:

  • Nothing like it yet a new note, in the folder it fits best, and Arki says how sure it is.
  • A note on it already the new line goes into that note, in the right place.
  • A part that is now wrong that part is replaced, and the old text stays as a version you can bring back.

12 Apr 2026 · 18:40

just cleaned the washing machine's inlet filters, both ends of the hose. at the tap end there's that adapter ring, detach the hose from it so it doesn't twist, seal out first then the filter and rinse. at the machine end the filter pulls straight out and you press it all the way back in. here's a photo of the tap end, save this so I don't have to work it out next time

Saved as the note “Cleaning the washing machine's inlet filters”, in the folder Home and maintenance, tagged maintenance and washing machine. I split the text into three parts: service history (12 Apr 2026), the tap end and the machine end. The photo sits under the tap end. It fitted that folder only loosely, so say if it belongs somewhere else.

What Arki did Looked for a note this belongs to: none, so a new one. Chose the folder Home and maintenance on thin evidence (the closest note there is Boiler service) and said so. Put the photo under Tap end.

Five months later

9 Sep 2026 · 17:30

how did I do the washing machine filters last time

The note “Cleaning the washing machine's inlet filters” (Home and maintenance), last done 12 Apr 2026:

Tap end: there is an adapter ring under the tap. Detach the hose from the adapter so the plastic part turns and the hose does not twist. Take the seal out first, then the filter; rinse and refit in the same order.

Machine end: the filter pulls straight out of the hose connector. When refitting, press it fully in.

The note has a photo of the tap end.

The photo in the note
Cleaning the washing machine's inlet filtersHome and maintenance · the tap end
just did it, add today to the service history

Added to the note's service history: 9 Sep 2026, filters cleaned at both ends.

What Arki did No new note: the line went into the one found above, under Service history below April's; nothing else changed.

and the machine end: the filter didn't come out by hand, you need small pliers to grip its rim and pull. fix that part

Fixed: the machine end now reads “The filter does not come out by hand: grip its rim with small pliers and pull it straight out. When refitting, press it fully in.” The rest of the note is as it was, and the earlier text is kept as a version.

What Arki did That part of the note was now out of date, so only it was replaced; the tap end, the photo and the service history stayed. The earlier text is kept as a version you can bring back.

Midweek

A plan that survives Tuesday

Plan the week's dinners in one conversation, around the evenings that are already busy. When the week changes, the plan changes in one sentence: push a few days forward, move one dinner, clear a night. Nothing is retyped, and the shopping list follows the plan.

we made far too much, push Wednesday and Thursday forward a day

Pushed forward a day: salmon soup to Thursday 10 Sep, spinach pancakes to Friday 11 Sep.

move Thursday's salmon soup to Saturday, we're at grandma's on Thursday

Salmon soup moved to Saturday 12 Sep. Thursday is now empty.

The week's meal plan on a phone, Wednesday to Sunday: nothing on Wednesday or Thursday, spinach pancakes on Friday, salmon soup on Saturday, four portions each
The meal plan after both changes: Thursday is free, and the salmon soup has moved to Saturday.

Evening

In the evening, you see what's left

Ask where the day stands and you get it straight: what's still open and what's due tomorrow. What didn't happen moves to tomorrow in one sentence, and nothing scolds you for it.

what's still open today

Still open today: the water bill and the vacuum cleaner bags. Dinner (mince sauce and potatoes) is not ticked off. Tomorrow: the library books (flagged).

move the water bill to tomorrow

The water bill is moved to tomorrow, Tue 8 Sep.

Once is enough

It works the way you tell it to

Tell Arki once how you want things: short answers, no cheering, how your notes are organised. Each area has its own settings note of about 960 characters, with a meter, and Arki reads General and the area's note before every answer. Say a rule in chat and you see the wording before it is saved; earlier versions can be restored.

I want the notes in four parts: projects, areas, resources and archive. a new note goes in projects if it belongs to something we're doing, otherwise in areas. resources only for guides and comparisons, and a finished thing goes to archive, not the bin. and ask before you make a new folder

Settings/Notes would get this text:

“Notes in four parts: Projects, Areas, Resources, Archive. A new note goes in Projects if it belongs to something we are doing; otherwise in Areas. Resources only for guides and comparisons. A finished thing is moved to Archive, not deleted. Ask before making a new folder.”

Shall I save it?

yes, save it

Saved in Settings/Notes. Arki follows it from the next reply; earlier versions can be restored on the note's page.

The page called How Arki works for me, on a phone: six settings notes, General, Food, Meals, Exercise, Tasks and Notes, each with a meter showing how much of its budget is used
Six notes, one per area, each with about 960 characters and a meter (the first two in frame). The Notes rule, last on the page, was said in chat; the rest were typed here.

Just yours

Training, mood – and food, if you want

The same chat keeps your training plan, whatever shape it is, and logs your sets as you say them. Your mood is a score from one to five and a few words of your own, never shared, with no streak to keep.

Track what you eat only if you want to. With calorie logging on, the Today page shows the day's budget and meals; switch it off and there is no diary, no target, and no calorie line on the widget.

squat, three fives at fifty, 52.5 next time

Logged: back squat 3×5 @ 50 kg, 20 min, 111 kcal. For next time: try 52.5.

Eaten 874, target 1583, 709 left; dinner is not logged yet.

tired but okay

Logged: 3/5, tired.

The back squat progress page on a phone: ten sessions from June to September, the top set rising from 40 to 50 kg in small steps with three sessions at 47.5, and the heaviest set so far
Ten sessions of one lift: 40 to 50 kg in 2.5 kg steps, three weeks at 47.5 before it moved, and the note for next time.
The Today page on a phone with calorie logging on: what is left to eat today, what was eaten at breakfast, lunch and a snack, the macros against their ranges, and tonight's planned dinner
The same Monday evening on the Today page, before the squat, with calorie logging on: the day's budget, the meals so far and tonight's dinner. Switched off, none of this is shown.

Then the household

Then the people you live with join in

When the others in your home have their own Arki accounts in the same household, the meal plan, the shopping list and the shared notes are theirs too. Anyone can open the list in the shop and tick things off.

Your training, weight, mood and food are seen by you alone. A note can be for everyone, for a smaller group such as the parents, or just for you.

The shopping list on a phone: coffee and detergent added by hand, salmon fillet, potatoes, cooking cream and dill from the week's recipe, then two dishes still without a recipe
Friday's list, worked out from the plan: the soup's ingredients and the coffee said in passing, but not the onion already at home.

Trust

Where your data is, and who can see it

Arki runs on one private server in Frankfurt, owned and run by one person, who built it for their own household. There is no company behind it and no open sign-up.

That person can read what is on the server. There is no screen for it, but whoever runs a server can open what is on it, and no setting changes that.

What your assistant reads from Arki becomes part of your conversation, so it reaches Anthropic or OpenAI under your own account's terms. The other way, Arki gets only what the assistant sends it, often in your own words; the rest of the conversation never reaches it.

Arki never sells your data, shows no ads and loads no trackers. It shares your data with no other service: a web lookup sends only the thing looked up, and a reminder goes to Todoist only if you connected your own.

Arki counts which of its pages and chat tools each signed-in person used, and when, and keeps that for 180 days: the name of what was used, never what anyone wrote, seen only by the person who runs it.

A note's versions page on a phone: the current version, then two earlier changes made in chat, each with how many lines it added and removed
A note's changes are kept, each showing who made it, and a removed note comes back for 30 days.

Who this is for

Arki is a private server, not a public service: there is no open sign-up, and accounts are by invitation only. If you have one, log in and connect the assistant you already use.

How to connect your assistant

  1. In Claude, open Settings, then Connectors, and add a custom connector.
  2. Paste your household's Arki address.
  3. Log in with your Arki account when it asks. From then on, just talk.

Claude first. ChatGPT works too, on paid plans that allow custom connectors, through its developer-mode connector settings.