Add internal/httpclient package as a singleton RoundTripper used by
all outbound engine requests (search, engines, autocomplete, upstream).
Key Transport settings:
- MaxIdleConnsPerHost = 20 (up from Go default of 2)
- MaxIdleConns = 100
- IdleConnTimeout = 90s
- DialContext timeout = 5s
Previously, the default transport limited each host to 2 idle connections,
forcing a new TCP+TLS handshake on every search for each engine. With
12 engines hitting the same upstream hosts in parallel, connections
were constantly recycled. Now warm connections are reused across all
goroutines and requests.
Update LICENSE file and add AGPL header to all source files.
AGPLv3 ensures that if someone runs Kafka as a network service and
modifies it, they must release their source code under the same license.
- Rename cmd/searxng-go to cmd/kafka
- Remove all SearXNG references from source comments while keeping
"SearXNG-compatible API" in user-facing docs
- Update binary paths in README, CLAUDE.md, and Dockerfile
- Update log message to "kafka starting"
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implement an API-first Go rewrite with local engine adapters, upstream fallback, and Nix-based tooling so searches can run without matching the original UI while preserving response compatibility.
Made-with: Cursor
