Tools we build in the open.
We maintain open-source projects for search, systems, data, travel, and document workflows. The code is public, practical, and ready for people who want to run it, study it, or improve it.
MongrelDB
A log-structured columnar database for sub-millisecond writes.
An embedded single-node engine with a custom columnar format, group-commit WAL, MVCC snapshots, DataFusion SQL, and a Node.js addon.
- WAL + B-tree writes
- Hybrid pushdown
- MVCC snapshots
- NAPI addon
Kanoprii
The feature packed drag-and-drop PDF editor for MacOS, Windows and Linux.
A 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
The modern, customizable, and tabbed Windows grep experience.
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
The modern, customizable Linux diff and merge experience.
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