concept.txt

/tradefinder select
get block looked at
check if block is lectern
select nearest librarian to that lectern
save both lectern and librarian

/tradefinder search minecraft:mending <level> [maxprice]
get saved villager and lectern
check if standing near enough
begin cycle "IDLE"

check trade "CHECK"
break lectern "BREAK"
place lectern "PLACE"

if found set state to idle

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Mixins needed:

ClientConnectionMixin


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Config order:

read all values and save to memory
if no values, set to default
save all values