Love Note

A Typst-based electronic lab notebook (ELN) for researchers.

---

Features

• Typst Editor -- Code editor with line numbers, Ctrl+F search, and auto-formatting (typstyle)
• Live Preview -- Real-time Typst rendering with multi-page scrolling
• Experiment Management -- One directory per experiment with main.typ + data files
• Drag & Drop -- Drop images, CSV, JSON, YAML into experiments with auto-generated Typst code
• Hash Chain -- SHA-256 linked revisions for tamper detection
• Ed25519 Signatures -- Cryptographic signing for authorship/approval
• PDF Export -- One-click PDF generation via typst-pdf
• Plugin System -- Rhai scripting with sandboxed execution

Quick Start

cargo build
cargo run

Commands

cargo test                         # Run 66 tests
cargo run --bin storage_inspector  # Inspect redb database
cargo run --bin storage_inspector -- --verify  # Verify hash chains
RUST_LOG=love_note=debug cargo run # Debug logging

Tech Stack

Layer	Technology	Purpose
UI	GPUI	GPU-accelerated rendering
Editor	gpui-component	Code editor with line numbers
Rendering	typst + typst-render	Typst compilation and preview
Formatting	typstyle-core	Auto-format on save
Storage	redb	ACID key-value store
Integrity	SHA-256 hash chain	Tamper detection
Signing	ed25519-dalek	Digital signatures
Plugins	Rhai	Sandboxed scripting
File Watch	notify	External edit detection

Documentation

• Architecture
• Implementation Checklist
• Research Summary

License

MIT