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NWPT '21 - the 32nd Nordic Workshop on Programming Theory - goes ahead as a hybrid meeting in Reykjavik 4-6 Nov 2021. (It had to be cancelled in 2020.)
Needless to say, category theory is a very noble way to do programming theory.
Submission of 2-3 pp abstracts (no formal publication): 10 Oct 23:59 AoE.
The programme features the currently active Geldingadalir volcano (which may be deep in a cloud by the moment we get there).