Autonomous AI Infrastructure: AnythingLLM, PostgreSQL 18 pgvector, and the Antigravity CLI (agy) System Agent

Most self-hosted AI setups stop at running a basic chat UI connected to a remote API. But what if your self-hosted AI wasn’t just a conversational bot, but a fully empowered autonomous system agent capable of managing your infrastructure, installing command-line tools, debugging services, and querying custom vector databases? In this post, I will explore our complete self-hosted AI architecture running on an Always Free cloud Kubernetes cluster—featuring AnythingLLM, PostgreSQL 18 with pgvector, and the Google Antigravity CLI (agy). ...

August 24, 2026 · 4 min · 734 words · Thang Hoang & Antigravity