Invite your customers within certain range in KM
# Install Crystal via https://crystal-lang.org/docs/installation
shards build --release --no-debug
./bin/invite -f path/to/your/data -d distance_in_km
crystal spec
crystal spec --release --no-debug
docker pull laithshadeed/invite-app
man 1 ./man/invite.1
wget https://github.com/laithshadeed/invite-app/releases/download/v0.1.0/invite
./invite --help