@techreport{ruto2026theinterfa,
  author = {Ken Ruto},
  title = {The Interface Tax: What a 1990s Signalling Protocol Still Costs Kenya, in Hours},
  year = {2026},
  institution = {Flux (FluxImpact)},
  type = {Flux Working Paper No. 44},
  howpublished = {\url{https://fluximpact.org/blog/the-interface-tax/}}
}