The Assistant & Notes Update

Highlights

• .NET 10 + Avalonia refresh: solution retargeted to .NET 10, Avalonia bumped to 11.3.13, DevTools migrated to AvaloniaUI.DiagnosticsSupport, and drag/drop + clipboard code updated for current APIs (DataTransfer, DoDragDropAsync, typed clipboard helpers).

• Assistant & orchestration: routing layer with a small manager model for JSON routing decisions, hardware tiering (GPU probes, snapshots, cache invalidation) feeding model selection and resource governance, skill routing with bundled skills (Application, Mindmap, Notes, Path), conversation memory (snapshots, summarization, tool dispatch scope), and simplified tool surface for more reliable tool calls. Mindmap and notes tools gained richer parameters (e.g. batch mindmap nodes, note search/sort/snippet options).

• Chat experience: streaming and reasoning/thought UI, collapsible chat history sidebar (7-day retention then pruned), copy and regenerate on assistant messages, Enter to send / Ctrl+Enter for newline, length control (short / normal / detailed) replacing older “general/explainer” modes, process tracking and tool-call visibility in the dataset layer, and GPU streaming options / reveal pacing in settings.

• Embeddings & knowledge: batch embeddings (single ONNX run for multiple texts), PDF text extraction (PdfPig) for ingestion, RAG ingest logging for completion and embedding failures, and optional chat dataset logging for exported turn records.

• Notes & clipboard: custom block clipboard preserving inline formatting (plain paste to other apps as markdown), paste markdown mapped into internal blocks/runs, branding asset refresh, and maintenance pass (quieter LlamaCpp debug output, binding/warning cleanup).

• Image blocks: new Image block type with path/alt/width metadata, markdown serialization, left/center/right alignment with tooltips and styles, rich-text captions, improved resize handle (inside image, drag ghosts, edge auto-scroll), and fixes for first-click on image chrome and caption hover/focus.

• Layout blocks: Two-column layouts with nested blocks and ColumnGroup-style structure, multi-line quote blocks, multi-line paste into columns with caret preserved across blocks, plus fixes for separator line, empty block visuals, and watermark remnants on rapid Enter.

• Editing & navigation: Shift+click range selection on drag handles, Ctrl+drag multi-block move, formatting keyboard shortcuts, full-block-area text drag-select (padding no longer dead zone), block spacing and + button alignment cleanup, flyout polish and duplicate note, and sidebar overhaul: drag reorder for notes and folders, double-click rename, and rename fixes.

Included commits

• afb6669 fix(blocks): multi-line paste in two-column + caret across blocks
• 3bd4e2c feat(notes): two-column block with nested block types
• 8eceab6 feat(blocks): selection, shift range, ctrl multi-drag, heading bold fix
• 37a8d6c fix(notes): image captions hover + focusable
• efe606f feat(notes): keyboard shortcuts for formatting
• 80a2c83 fix(blocks): separator line, empty blocks, watermark on Enter
• 44048e1 feat(blocks): TwoColumn block + rich image captions
• 043dc59 cleanup(notes): block heights/spacing, + button alignment, new block under image
• df29ef0 feat(notes): multi-line quote blocks
• 10a0ff8 feat(blocks): image resize/drag ghosts, auto-scroll, caption out of overflow menu
• c11fc08 fix(notes): first click on image controls
• 81e71ec feat(ui): image alignment tooltips + styles + i18n
• 5afcef8 feat(blocks): image alignment + clipboard + selection hit-testing
• 777e317 feat(blocks): Image block type + markdown + i18n
• 0988952 fix(notes): drag-select from full block area
• 98c1787 feat(notes): flyout visuals, duplicate note, dialog overlay styling
• 0d14387 feat(notes): sidebar drag reorder + rename UX
• e79ee34 feat: chat history + process tracking models + clear history
• 4f243f5 feat: mindmap batch nodes + note search + routing mode + tool simplification
• 9b2d3cd feat: memory snapshots in routing + multi-skill routing
• 76ac0d6 feat: conversation memory models + tool dispatch scope
• 9f27a03 chore: remove outdated dataset examples/docs
• 2af0c35 feat(embedding): batch embeddings + PDF extraction
• 279e445 feat: branding, block clipboard, markdown paste, RAG logging
• 5db10d1 Upgrade Avalonia + .NET 10, DevTools, DnD/clipboard APIs
• 0c24571 UI: “Chat History” title + chat button styling
• e91785b Maintenance: LlamaCpp noise, warnings, bindings, length modes
• debf68a feat(ai): streaming/reasoning UI, sidebar history, copy/regenerate
• d48eb2e feat(chat): thought/process UI + tool callbacks + animations
• 875d2bb feat(ai): chat dataset schema + orchestration interfaces
• 2baf14c feat(ai): skill routing, bundled skills, dataset logging
• 1ff52db feat(ai): GPU cache invalidation + streaming pacing settings
• c5e7fbf feat(ai): orchestration routing, hardware tiering, chat pipeline UX, manager model

Official Site: https://www.mnemo.one/

Install

1. Download mnemo-alpha-preview-0.5.0-win-x64.zip
2. Extract the archive
3. Open Mnemo.exe

If you get an error on launch after AI setup or during AI inference, install the official Microsoft Visual C++ Redistributable:
https://aka.ms/vs/17/release/vc_redist.x64.exe

You can also use the VC_redist.x64.exe included below.

Warning: The link above is a direct download and will start automatically. Only click it if you intend to download the file.

Warning: We are still working on optimizing the AI and adding safeguards. The AI is currently unstable and may not work on low-end systems. It can also delete or alter your content. Use at your own risk.

The Mindmaps Update

Highlights

• New Mindmap Toolbar: a redesigned toolbar that makes mindmap actions and workflow significantly faster.
  

• Node Styling + Better Auto Layout: improved node colors and shape plus more robust auto layout options and spacing tuned to actual node size for cleaner results.

• Edge Types Upgrade: choose different edge styles to match the way you think (e.g., solid, dashed, dotted, double, arrow, bidirectional).

• Edge Labels: edges can now display labels for clearer connections between nodes.

• Minimap: Helps with navigating large maps more effectively.

• Preview Mode: switch to “Preview” to make the mindmap read-only and hide the toolbar for distraction-free reviewing.
• Export + Editing Productivity:
  • PNG export for easy sharing/saving
  • Undo/Redo
  • Collapse/Expand nodes for faster exploration
  • Keyboard shortcuts to speed up common actions
• Rendering Accuracy: refactored node/edge calculations for more accurate rendering.

Included commits

• 604819e Improved mindmaps: node styling (colors/shape) + more auto layout options
• 8840871 More improvements to the mindmaps module
• ddad242 Added edge labels
• 72f4c74 Improved mindmap toolbar
• 5e510ae Implemented edge types
• 19f4056 Added mode switcher (Preview mode: read-only + toolbar hidden)
• 1ffbef8 Implemented PNG export functionality
• c3e087b Implement undo/redo functionality
• 23818e7 Refactor node and edge calculations for accurate rendering
• 959c5b3 Collapse/expand functionality for nodes
• 7d5c7e8 Update image links in README
• 4352ff0 Improved minimap functionality
• fac2988 Implemented keyboard shortcuts
• a5a06ec Update layout algorithms to base spacing on node actual width/height

The Editor Update

Rich Text Formatting

• Format your text, your way
  • Bold, italic, underline, strikethrough, highlight, and more — all available inside any block.
  • Select text to instantly bring up a formatting toolbar. Active formats (like bold) are clearly highlighted so you always know what's applied.
  • Highlight colors match your current theme (Dawn/Dusk) and stay consistent if you switch.
  • All formatting is saved automatically with your document.

• Smarter selection & navigation
  • Select text across multiple blocks and apply formatting to all of it at once.
  • Ctrl+A: press once to select everything in the current block, press again to select the entire document.
  • Click in the empty space below your content to quickly start a new block.
  • Paste multi-block content and it'll flow in naturally, first block at your cursor, the rest added below.

• Keyboard shortcuts that just work
  • Ctrl+Backspace deletes the whole word before your cursor.
  • Typing while bold, italic, etc. is active keeps that formatting going, no need to reapply it.
  • Headings are bold by default.

Undo / Redo

• Undo the way you'd expect
  • Undo and redo now work across your entire document, not just within a single block.
  • Text changes are grouped intelligently. undoing steps back through logical edits, not individual keystrokes.
  • Formatting changes (like applying bold) are also part of the undo history.

Fixes & Improvements

• Formatting toolbar no longer causes layout glitches when it appears.
• Various stability improvements to how content is stored inside blocks.

Chat Features

• Attachments

  • Added support for image and file attachments (including screenshot captures).

• Previews

  • Displays image and file previews directly in chat messages.
  • Tap an image to open a full preview.

• Voice Input
  • Speech-to-text powered by OpenAI Whisper-Tiny.
  • Voice input can replace existing text or append to the current message.
  • Option to record voice/audio and attach it to chat messages.

Theme & UI

• Markdown renderer now uses theme-aware text styling.

Block Editor Enhancements

• Slash Command Menu

  • Redesigned with consistent styling and updated icons.
  • Menu now positions above or below the current line to prevent clipping.

• Scrollbar

  • Updated styling for improved usability.

• Lists

  • Favorites and My Notes selection now use a subtler highlight color instead of the orange accent.

Performance & Stability Improvements

• Block Reordering

  • List numbering now recomputes only when numbered lists are present.
  • Reduced unnecessary notifications during refresh.

• Selection

  • Improved cross-block selection handling.
  • Added focused block index tracking.

• Clipboard

  • Asynchronous copy/paste for smoother interactions.

• Input Handling

  • Centralized event wiring within block components.
  • Debounced note saving to reduce processing while typing.

Alpha Preview is the first public build of Mnemo: a free, open-source, cross-platform learning app built with .NET 9 and Avalonia 11.

This alpha focuses on core structure and a few key features. Many parts are still in development and some may be incomplete or experimental.

In this build:

• Application shell & navigation – Modular layout and navigation between sections
• Learning paths & units – Create and browse learning paths and units
• Notes & content – Note-taking and content ingestion
• Mindmaps– Mindmaps module
• Local AI chat – Offline chat using local LLMs (e.g. via LLamaSharp), no cloud required
• Theming, settings & localization – Customizable themes and multi-language support infrastructure

Platforms: Windows
Requirements: .NET 9.0 runtime. For faster AI: NVIDIA GPU with CUDA 12.x (optional).

No subscriptions, no ads, no tracking. Feedback and bug reports are welcome.

Pre-built releases are first-time; please report packaging or runtime issues.

Issues, problems and unintended interactions might occur.

Translations that are not English are machine translated through MyMemory API. Errors will accure.

Model payload. Fetched through the application under AI setup.