Duplicati

A modern AESCrypt implementation for C# that balances strict security, legacy compatibility, and streaming performance.

A deep look at the repo that cross-compiles native SQLite for the platforms upstream does not fully cover, then packages it into the exact .NET-compatible shape Duplicati needs.

How an open-source backup tool built a bespoke, reactive C# caching proxy to survive the bandwidth costs of distributing software updates.

How a legacy C# engine adopted Signals, automated SDKs, and a modern web architecture to outshine CLI-only competitors.

How an open-source backup engine solved the impossible problem of desktop OAuth without absorbing massive security liability.

How a legacy backup system extracted its internal clock into a zero-bloat .NET microservice using SQL as a message bus.

How a GUI-first backup engine uses field-level SQLite encryption and stateless caching to survive complete hardware failure.

How a zero-dependency C# library uses stream concatenation and JSON comments to bypass the complexity of JWS.

How an open-source backup project uses a hybrid Jekyll and Grunt pipeline to decouple software releases from web deployments, proving that older web stacks still punch above their weight.

How a .NET 9 microservice uses double-buffered fail-safes and zero-trust encryption to guarantee telemetry delivery for distributed backups.

How a legacy Python 2.7 app on Google App Engine uses defensive data engineering and fan-out task queues to process global telemetry without a massive cloud bill.

How an opinionated .NET library uses built-in Web Application Firewalls and RSA-verified feature gating to turn a self-hosted backup tool into a managed enterprise platform.

How a C# backup client brings enterprise-grade deduplication to the masses, and the architectural price of keeping a local index of the cloud.