Josef Čejka and Bogdano Arendartchuk present the facilities from the L3 team that are available for Labs to assist with analyzing and reproducing bugs and tracking PTFs delivered to customers: l3mule, fastzilla, l3vm, ptfdb, debuginfod, ptfutils, etc. We then open for discussion, mostly focused on: a) what Labs needs from L3 regarding infra and b) what can be improved in l3mule.