Building Monocle, a universal personal search engine for life

The article describes Monocle, a self-built personal search engine designed by the author as an “extended memory” system to recall information from their digital life. Inspired by Vannevar Bush’s Memex concept, Monocle indexes diverse data sources—including notes, emails, social media interactions, and browser history—to create a centralized repository for quick access to past thoughts, references, and connections. The tool prioritizes privacy (self-hosted), speed, and seamless integration with existing workflows via a web interface.

Key features include:

• Automated Indexing: Scans data from personal projects, blogs, and tools like Noct (a custom backup system) without manual entry.

• Infrastructure Integration: Acts as foundational infrastructure for the author’s other apps, akin to building a “personal cloud,” alongside shared services such as authentication layers or UI frameworks.

• Daily Utility: The author uses Monocle as frequently as Google for retrieving past knowledge (e.g., recalling contacts, blog posts, or saved recommendations), finding it more efficient than traditional note-taking systems.

The author emphasizes that Monocle represents a broader philosophy of self-sovereign digital tools—prioritizing control over data and privacy while enabling innovative uses of personal information. They argue such projects are rare today because most people’s data is fragmented across proprietary platforms, making centralized tools like Monocle difficult to achieve. Yet, the author sees Monocle as a proof-of-concept for what’s possible when individuals take charge of their digital ecosystems, advocating for a future where decentralized, privacy-respecting systems empower personalized knowledge management.

Future plans include expanding Monocle to index more data (e.g., calendar events) and integrating it with other infrastructure projects. The article concludes by framing Monocle as part of a larger vision: building interconnected tools that give users agency over their digital lives, blending efficiency with ethical tech practices.