Building instructions fail on Ubuntu 24.04 LTS because `/bin/sh` is not `bash`

[hkockerbeck]

The build.sh script uses a special feature of bash that's not necessarily available in other shells, namely pipefail. But /bin/sh on Ubuntu isn't bash, but a stripped down shell named dash (and has been for quite some time). So the command given in the README fails. Instead of sh build.sh && sh install.sh, you need to do ./build.sh && ./install.sh (because the respective shebang is referencing bash), or explicitly bash build.sh && install.sh.