On plan.cat/stdin it shows just such an incantation: T=`mktemp` && curl -so $T h...

HellsMaddy on Nov 17, 2021 | parent | context | favorite | on: .plan

On plan.cat/stdin it shows just such an incantation:

    T=`mktemp` && curl -so $T https://plan.cat/~YOUR_USERNAME && $EDITOR $T && \
      curl -su YOUR_USERNAME -F "plan=<$T" https://plan.cat/stdin

It worked for me ¯\_(ツ)_/¯

thaumaturgy on Nov 17, 2021 [–]

facepalm I missed that. Nice. Thanks.