diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+# VS Code
+.vscode/
+*.code-workspace
+
+# Windows
+Thumbs.db
+Desktop.ini
+
+# macOS
+.DS_Store
+
+# Build and release output
+releases/*.zip
+dist/
+build/
+
+# Temporary files
+*.tmp
+*.temp
+*.log
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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+++ b/CONTRIBUTING.md
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+# Contributing to Hudra
+
+Hudra is currently an early-stage project.
+
+## Development principles
+
+Changes should be:
+
+- focused
+- easy to understand
+- independently testable
+- backwards compatible where practical
+
+## Before making a change
+
+1. Create or identify an issue.
+2. Describe the problem being solved.
+3. Define clear acceptance criteria.
+4. Make the smallest practical change.
+5. Test against the stable lesson examples.
+6. Confirm existing presentation behaviour still works.
+
+## Commit messages
+
+Use short, descriptive commit messages, for example:
+
+- Fix audience zoom reset
+- Add presenter keyboard shortcut
+- Improve image-only slide sizing
+- Update installation documentation
+
+## Releases
+
+Stable releases should include:
+
+- an updated manifest version
+- changelog entry
+- Git commit
+- Git tag
+- release ZIP
diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+MIT License
+
+Copyright (c) 2026 Kaden Napper
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/ROADMAP.md b/ROADMAP.md
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+++ b/ROADMAP.md
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+# Hudra Roadmap
+
+Hudra is developed incrementally, with stability and simplicity prioritised
+over large feature releases.
+
+## Current stable release
+
+### Hudra 0.9.1
+
+- Automatic slide generation from HTML headings
+- Presenter dashboard
+- Dual-screen presentation
+- Current and next slide previews
+- Timer and clock
+- Audience zoom and scrolling
+- Keyboard and presentation remote support
+- Image-only slide optimisation
+
+## Near-term priorities
+
+### Hudra 0.10
+
+- Presenter interface refinement
+- Improved reliability
+- Documentation
+- Classroom testing
+- Accessibility review
+
+## Future exploration
+
+- Video-focused slide layouts
+- Presenter annotations
+- Laser pointer
+- Improved media handling
+- Wider LMS compatibility
+- Managed browser deployment
+
+Future features will be developed and tested individually to avoid regressions.
diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
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+++ b/docs/ARCHITECTURE.md
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+# Hudra Architecture
+
+## Overview
+
+Hudra is a Manifest V3 browser extension that presents the existing DOM of an
+HTML lesson.
+
+It does not convert the lesson into a proprietary format.
+
+## Slide detection
+
+The current presentation model uses HTML headings:
+
+- H1 identifies the lesson title
+- H2 identifies the beginning of a new slide
+- content following an H2 belongs to that slide until the next H2
+
+## Main components
+
+### background.js
+
+Handles extension-level behaviour and presentation launch logic.
+
+### controls.html
+
+Provides the presenter dashboard interface.
+
+### controls.css
+
+Styles the presenter controls.
+
+### controls.js
+
+Manages presenter navigation, controls and audience communication.
+
+### presenter.js
+
+Creates and manages the audience presentation experience.
+
+### manifest.json
+
+Defines the extension metadata, permissions and version.
+
+## Design constraints
+
+Hudra should avoid:
+
+- cloning complex media unnecessarily
+- fragile LMS-specific DOM assumptions
+- large content-detection systems
+- destructive modification of the original lesson
+
+New media features should be implemented and tested independently.
diff --git a/docs/DECISIONS.md b/docs/DECISIONS.md
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+++ b/docs/DECISIONS.md
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+# Hudra Development Decisions
+
+## Decision 001 — HTML is the source of truth
+
+Hudra presents the existing lesson rather than requiring teachers to maintain
+a separate presentation.
+
+## Decision 002 — No proprietary lesson format
+
+Teachers should continue authoring normal HTML in QLearn, Canvas or another
+web-based platform.
+
+## Decision 003 — Simplicity over automation
+
+Hudra should avoid complicated content heuristics unless they are reliable and
+provide a clear classroom benefit.
+
+## Decision 004 — Stable features are added incrementally
+
+Media-specific improvements should be developed and tested one at a time.
+
+## Decision 005 — Hudra 0.9.1 is the stable baseline
+
+Hudra 0.9.1 is the known-good version and is tagged in Git as v0.9.1.
+
+## Decision 006 — Public and internal versions may differ
+
+The visible product branding may show a major/minor version such as Hudra 0.9.
+
+The browser extension manifest may use a patch version such as 0.9.1 for
+maintenance and debugging.
diff --git a/docs/VISION.md b/docs/VISION.md
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+++ b/docs/VISION.md
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+# Hudra Vision
+
+## Purpose
+
+Hudra turns an existing HTML lesson into a classroom presentation.
+
+It is designed primarily for QLearn and Canvas, while remaining compatible
+with ordinary HTML pages.
+
+## The problem
+
+Teachers transitioning from OneNote and PowerPoint to QLearn often maintain
+two versions of the same lesson:
+
+- the QLearn page used by students
+- the PowerPoint used for classroom presentation
+
+This creates duplicated work and version-control problems.
+
+## The idea
+
+The HTML lesson should be the single source of truth.
+
+Teachers should build the lesson once and use that same lesson:
+
+- in the classroom
+- online
+- for students learning from home
+- as a presentation
+
+## Core message
+
+> Build once. Present everywhere.
+
+## Design principles
+
+Hudra should be:
+
+- simple
+- fast
+- reliable
+- lightweight
+- predictable
+- easy for teachers to understand
+
+Hudra should not introduce a proprietary lesson format.
+
+It should enhance existing lesson content rather than rebuild or convert it.