This work outlines the potential of Raspberry Pi as a microserver to foster sustainable development in developing and least-developed countries. The Fourth Industrial Revolution has introduced enhancements like cloud computing, the Internet of Things and artificial intelligence, which, while potentially revolutionary, entail high costs, posing a barrier to use in these countries. This paper explores Raspberry Pi microservers as an affordable alternative to costly servers and hosting infrastructure, promoting industrialisation and infrastructure development. Several open-source software applications conducive to various sectors are discussed, demonstrating the adaptability of Raspberry Pi microservers. Raspberry Pi also finds use in an on-premise hosting setup, offering a cheaper substitute to cloud-based infrastructure. The number of virtual users a microserver can support is linked to the upload rate, suggesting that increasing upload capacity can enhance usage. In conclusion, Raspberry Pi microservers present an economical and versatile solution for fostering sustainable industrialisation and infrastructure development worldwide. Increased upload bandwidth are suggested to maximise this potential further.