RePEc relies on volunteer work to function, and many are contributing. One can help in small and big way. Simplice Asongu is one of those who have embraced RePEc and contribute in big ways. He is one of the editors on MPRA, the Munich Personal RePEc Archive which allows authors whose home institution does not participate in RePEc to upload their works and have them listed. While an institutional archive has some editorial control if only to preserve the reputation of the institution, anybody can upload at MPRA and thus a minimum of quality control is required: it should be about economics, it should be an academic work, it should not violate copyrights, the full text needs to be legible, and the required metadata needs to be complete. As material in any language could be uploaded to MPRA, this required a large diversity of editors that make sure the uploaded paper is appropriate. Of course, English is by far the most frequent language and necessitates several editors to handle the workload. Simplice is one of them, and he has so far handled close to 8000 papers.
Simplice currently works at the African Governance and Development Institute (AGDI), a think tank based in Yaoundé (Cameroon). He is an empirical economist principally interest in growth development and finance issues for Africa. Doing research in Africa is not the easiest, and it is remarkable that he remains productive in his academic undertakings in such an environment, and even finds time to help RePEc in significant ways.
If you want to help RePEc as well, even in small ways, here is a list of some volunteer opportunities.