◎ Helm · personal OS

Your notes, tasks & calendar, finally one thing.

Helm is a private, self-hosted personal operating system. A task is a block on your calendar, scheduled by plain arithmetic, not a black box. Capture fast, see your day, and keep every byte on hardware you own.

A to-do list that respects your clock.

Most tools keep tasks and time in separate apps, so “plan my day” is manual every morning. Helm plans it deterministically: estimate a task, and it finds the block. No AI guessing, no surprises, fully undoable.

01

No-AI core

The planner is plain arithmetic you can trust. AI is an optional, bring-your-own-model add-on. Never required, never in the critical path.

02

Yours, on your box

Self-hosted (FastAPI + Postgres + a fast PWA). Private by default; your notes and schedule never leave your server.

03

Capture at the speed of thought

Quick-capture with intent pills and voice, a Today view, notes-in-stacks, and web push. The friction gone from writing it down.

What's in the box

The whole day-loop, shipped: capture it, plan it, do it, and let your agents carry a share of it.

  • Notes, tasks & calendar as one — a task is a time block
  • Quick-capture with intent pills & voice capture; a multi-line paste becomes a task with sub-tasks
  • Deterministic Plan Today / Plan Week — preview, confirm, one-tap complete
  • Agent queue: send a task or note to Claude Code (bundled MCP server) or a local model; replies land back in a review lane
  • Orgs, shared projects & share links — send a teammate a task; they accept, counter, or decline
  • Bring-your-own-model assistant — Self-Hosted, Anthropic, Google, OpenAI, xAI; keys never leave your device
  • Web push, plus morning & evening digests
  • Odoo two-way sync (tasks & calendar)
  • Google & Microsoft calendar sync — rolling out
  • Daily Recap card + Recap analytics dashboard, all arithmetic, no model

Own it. Optional AI, on your terms.

Free to self-host. Pay once for the pro workflows, or add the Odoo/business tier.

Core
Free
source-available · self-host
  • Notes, tasks & calendar-as-blocks
  • Quick-capture, Today view, dark mode
  • Deterministic task planner
Read the docs
Self-host PRO
$79 one-time
includes 1 year of updates · waitlist open
  • Everything in Core
  • Organize Tasks (deterministic, undoable)
  • Bring-your-own-model assistant
  • Google & Microsoft calendar sync
  • Web push & deeper insights
Join the PRO waitlist
Business / Odoo
$199 one-time
or $19/mo
  • Everything in PRO
  • Odoo tasks & calendar sync
  • Shared projects / multi-user
  • Priority support
Talk to us

Run your day on something you own.

Self-host the core for free. PRO ships soon; the waitlist hears first.

The waitlist hears first

Self-host the core free today. Leave your address and you hear first when PRO ships, at the launch price.

Prefer plain correspondence? hello@practicalbusinessmachines.com