all: @make problem-set-1 @make problem-set-2 @make problem-set-3 problem-set-1: @export SOURCE_DATE_EPOCH=1700000000 && tectonic -o ../../website/problem-sets "problem-set-1.tex" problem-set-2: @export SOURCE_DATE_EPOCH=1700000000 && tectonic -o ../../website/problem-sets "problem-set-2.tex" problem-set-3: @export SOURCE_DATE_EPOCH=1700000000 && tectonic -o ../../website/problem-sets "problem-set-3.tex"