In #445 and #479 we added a dependency on CUPTI. Building was not possible without adding cuda-cupti-dev to the build section of the conda recipe. According to offline conversations, this is not required for cuda-cudart-dev because that is implicitly added by the compiler, however, @bdice believes this should not be necessary anyway and only having cuda-cupti-dev in the host section should suffice. From a usability perspective in RapidsMPF, having to add it to the build section seems to have cause no issues.