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Documents / Folio

Live

Keep sensitive documents available when systems fail.

A document archive built on Continuum for businesses that need confidentiality and dependable access. Live for research and publishing, and intended as the archiving backend for True North.

Marcus Rydberg · Independent build with coding agentsGo · Postgres · SvelteKit
Folio private vault listing stored documents
A private vault in the running Folio application. Click image to enlarge.

Why I built it

Folio began with a practical need: somewhere to keep my documents and publish my research. It also has a larger role in the product family as the intended archiving backend for True North. The same foundation can serve businesses whose documents must remain private and accessible through an outage or ransomware incident.

Engineering decisions

Use Continuum to distribute document shares across archives. With a threshold greater than one and one share per archive, a single archive cannot reconstruct the document. Authorized reads still need enough reachable shares and a working access path.

Separate private storage from public publishing, with versioned reads and idempotent writes.

Record reconstruction as an audited event. The server reconstructs documents at read time.

Ship rate limits, an abuse workflow and administrative tombstones before enabling public publishing.

What works today

Folio has been in production since July 2026 and is used by the research publishing workflow. The existing site essays were migrated through a manifest of permanent redirects.

Current boundaries

True North integration is an intended role, not a completed integration claimed here. Business deployments need recovery drills and independently operated infrastructure. Shared collections and client-side reconstruction are deferred. The service can access plaintext during a read, and durability depends on continued storage operations.

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trying to build?

I'm open to senior engineering and technical leadership roles, contract builds, and consulting through Artilect US.

Send me the role, the problem, or the rough idea. An early conversation is welcome.

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