Switch the port to use the official prometheus-web-ui package to avoid the nightmare of building the react project on the ports infrastructure. Include a patch from an open pull request that works around the issue of TSDB on systems with no unified buffer cache by using mmap both for read and writes. For more info about patch-mmap_openbsd check out: https://github.com/prometheus/prometheus/pull/9085 and https://github.com/prometheus/prometheus/issues/8877 OK sthen@