Drawing praxis from Bowen University, Nigeria and other libraries worldwide, the chapter unveils the limitless capabilities of Koha ILS to successfully manage core library house-keeping functions—cataloging, acquisitions, circulation control, patrons' management, OPAC, serials, and report generation—in one seamless whole. Web-based features like its flexibility, adaptability, interoperability, MARC, Z39.50, patrons' ability for online logging in, registration, renewal, and many more were revealed. Also, reasons for its global adoptability, benefits, likely challenges, and solutions from practitioners were also highlighted. The chapter concludes that despite the puny but eventually surmounted challenges, Koha holds unlimited potential for libraries of any shape/size by just garnering from the experiences of subsisting users of the software globally.