For complete instructions see: bore.pub
Download the pre-built binary for x86_64 on linux:
wget https://github.com/ekzhang/bore/releases/download/v0.5.2/bore-v0.5.2-x86_64-unknown-linux-musl.tar.gz
Extract the archive:
tar -xvzf bore-v0.5.2-x86_64-unknown-linux-musl.tar.gz
Move the binary to a system path:
sudo mv bore /usr/local/bin/