Current fleet is stable but marginal on `dankserver` RAM (4600 MT/s). `frank-large` (Halogen) and `frank-primary` (VLLM) are the main inference providers. Watch for `max_tokens` 400 errors on large prompts and orphaned `llama-server` processes after benching. `frank-medium` requires 16384 MiB `CACHE_RAM` for hybrid DeltaNet states. Quadlet units ensure boot persistence. Use `ak shell` for Authentik user management. Distill skills to vaults to reduce context bloat (~38k tokens overhead).