So, you're writing some bash and you realize that before you can execute the next program, you need to wait until a port or HTTP endpoint becomes available. That's where w8 comes in.
```sh
$ w8 --http localhost:8080/v1/_healthz && curl localhost:8080/v1/data
$ w8 --tcp localhost:5432 && psql -c 'CREATE EXTENSION IF NOT EXISTS pg_trgm;'
$ w8 --tcp 192.168.1.100:58846 --http 192.168.1.100:8112 --tcp 192.168.1.100:8998 ```
sh
$ cargo install w8