Tools we build in the open.
We maintain open-source projects for search, systems, data, travel, and document workflows. The code is public and practical - run it, study it, or improve it.
MongrelDB
A log-structured columnar database for operational writes, learned indexes, and AI-native access.
An embedded single-node engine with a custom columnar format, group-commit WAL, six secondary index kinds, MVCC snapshots, DataFusion SQL, and a Node.js addon.
- WAL + Bε-tree writes
- Six secondary index kinds
- MVCC snapshots
- AI-native retrieval
Kanoprii
The friendly, fast, cross-platform PDF editor.
A lightweight local app to view, reorganize, annotate, sign, OCR, export, and search PDFs without accounts, telemetry, or file uploads.
- View and annotate
- Merge/split/extract
- Markdown export
- Offline by default
Roamarr
A private, self-hosted travel organizer for every part of a trip.
A self-hosted itinerary hub for flights, stays, trains, rentals, documents, companions, reminders, expenses, sharing, and calendar feeds.
- Trips and itineraries
- Traveler documents
- Sharing links
- Encrypted fields
IcefallDB
Filesystem-native analytical tables with row-level mutations.
Ordinary directories of Parquet files plus JSON metadata, with atomic mutations, immutable snapshots, WAL fast-commit, and incremental aggregate caching.
- Plain Parquet + JSON
- DELETE/UPDATE/MERGE
- Time travel
- Python adapter
Grexa
Fast, precise file-content search for Linux.
A Linux-native desktop app and scriptable CLI for searching, filtering, previewing, and safely replacing text across files, documents, Docker, and Podman containers.
- Regex search
- Safe bulk replace
- Document search
- Docker + Podman search
Grex
A modern, customizable grep app for Windows, with tabs.
Search native drives, UNC shares, Docker containers, and WSL distributions with instant previews, regex visualizations, safe bulk replace, tabs, and CLI automation.
- Streaming IO
- Windows + WSL search
- Docker search
- Regex builder
LinSync
A modern, customizable diff and merge tool for Linux.
A KDE-native comparison tool for files, folders, images, documents, tables, archives, and web pages, powered by one Rust core for GUI and CLI.
- Text/folder compare
- Image tolerance
- Three-way merge
- Archive compare
LinSight
The fast, modular Linux system-monitoring dashboard.
A live Qt/Kirigami dashboard, daemon, and CLI for CPU, memory, GPU, storage, network, and sensor telemetry with plugins, alerts, and Prometheus export.
- Multi-GPU sensors
- Runtime plugins
- Custom dashboards
- mTLS remote bridge
Foxden
A workspace manager for Firefox tabs.
Groups tabs into switchable contexts with color-coded workspaces, folder rules, keyboard navigation, search, tab suspension, and quick switching.
- Tab workspaces
- Folder rules
- Search
- Quick switcher