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First text from the employee I sent to an educational trade event says she's having fun but also that the software they've got set up on their roasters is bad. Based on what I saw the last time I taught at the venue there are 3 things that she might be experiencing.
Another is a commercial sponsor of the event that I get to have a little chuckle about every few years when their marking brags about a feature they could have mined from my software more than a decade prior.
The third is a competing free option that was just never really designed for larger scale use and is missing a ton of features that home roasters don't need but anybody trying to operate with batch to batch consistency should have.
One is software from the roaster manufacturer which prompted me to contact them about certain design decisions that can cause safety problems but that also was so slow that I pulled open the electrical box to write down part numbers and look up spec sheets to find that they could be driving their whole UI a lot faster for better user experience.