Shipping Piper as a Cross-Platform Local TTS Runtime
A practical design for packaging Piper, wrapping its CLI, and testing local speech synthesis across Windows, macOS, and Linux.
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Software Engineering
Field notes collected under Software Engineering.
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A Field Guide to Shipping Local TTS Across Platforms
How to choose, benchmark, package, and isolate a local text-to-speech stack without treating a good demo as production evidence.
Caching Service Tokens in Gravitee with a Loopback API
How an internal loopback API let us cache auth responses in Gravitee after the Groovy sandbox and OAuth2 resource ruled out simpler approaches.
Caching Service Tokens with a Gravitee Loopback API
How I worked with Gravitee's response-cache constraint by putting the token endpoint behind a small internal API.
Finding an 800ms Token Callout in a Gravitee API Gateway
A service token lived for more than ten hours, but our Gravitee gateway fetched it on every request. Here is how we measured the delay, tested the obvious cache fix, and found …
Moving AuthOS Rust Builds Out of Docker with cargo-zigbuild
How we cross-compiled three AuthOS binaries with cargo-zigbuild, kept Docker for packaging, and cut our warm publish builds from about 15 minutes per variant to 90 seconds.
What Actually Limited AuthOS on SQLite
AuthOS appeared to hit SQLite's limits at 130 requests per second. Moving Argon2 work, audit writes, activity updates, and overload control changed the result—and exposed what …
Serializing SQLite Writes in a Parallel Rust Test Suite
How a Rust SSO test suite exposed SQLite write contention, why timeouts and raw transaction SQL did not solve it, and how one writer connection stabilized eight parallel …
Serializing SAML Certificate Rotation with a PostgreSQL Row Lock
A concurrent integration test exposed a check-then-act race in a Rust SAML key-rotation handler. A transaction, a lock on the shared service row, and a partial unique index …
From a Rust Benchmark to an SSO Platform for 500,000 MAU
How AuthOS grew around a small Rust core, and what its measured budget-VM throughput means under an explicit 500,000-MAU traffic model.
How Far AuthOS Got on One CPU and 1 GB of RAM
I rebuilt the AuthOS SQLite benchmark, untangled two limits outside the database, and measured its useful operating point inside a budget-shaped VM.
Git Best Practices Simplified
Git is the most important development tool. It allows you to time-travel through your code and provides excellent collaboration features. This article dives into the way …
