Actors protect mutable state
An actor allows only one task at a time to access its isolated state.
Isolation removes an entire class of data races.A thoughtful learning workspace
Learn deeply.
Keep what matters.
Structured learning, connected notes, and review that helps knowledge stay—across web and mobile.
Private notes. Explicit AI context. Local-first editing.
Actor isolation
Think of an actor as a guarded room: values inside can only be touched through the door.
Linked to lessonOne continuous learning loop
From first idea to lasting knowledge.
Learn with structure
Follow focused subjects and return exactly where you stopped.
Capture the useful parts
Turn highlights and explanations into connected notes, not lost fragments.
Review to retain
Practice saved ideas with active recall and a calm, intentional schedule.
Designed for trust
Your workspace stays yours.
- Private by defaultNotes are never public unless the product later adds an explicit sharing feature.
- You choose AI contextOnly the sources selected for an AI action are sent for processing.
- Keep working offlineSupported lessons and notes remain useful when the network disappears.
Build knowledge you can return to.
Start with one lesson. Keep the parts that matter.
Create your workspace