allow URIs to be overridden at build time
allow URIs to be overridden at build time

acbellini/Singularity,calebTomlinson/Singularity,nvoron23/Singularity,calebTomlinson/Singularity,grepsr/Singularity,calebTomlinson/Singularity,grepsr/Singularity,tejasmanohar/Singularity,acbellini/Singularity,stevenschlansker/Singularity,evertrue/Singularity,grepsr/Singularity,acbellini/Singularity,tejasmanohar/Singularity,andrhamm/Singularity,grepsr/Singularity,stevenschlansker/Singularity,andrhamm/Singularity,nvoron23/Singularity,HubSpot/Singularity,hs-jenkins-bot/Singularity,hs-jenkins-bot/Singularity,acbellini/Singularity,grepsr/Singularity,grepsr/Singularity,andrhamm/Singularity,stevenschlansker/Singularity,acbellini/Singularity,nvoron23/Singularity,stevenschlansker/Singularity,evertrue/Singularity,HubSpot/Singularity,stevenschlansker/Singularity,calebTomlinson/Singularity,andrhamm/Singularity,nvoron23/Singularity,HubSpot/Singularity,calebTomlinson/Singularity,nvoron23/Singularity,evertrue/Singularity,tejasmanohar/Singularity,hs-jenkins-bot/Singularity,evertrue/Singularity,hs-jenkins-bot/Singularity,stevenschlansker/Singularity,nvoron23/Singularity,andrhamm/Singularity,acbellini/Singularity,tejasmanohar/Singularity,HubSpot/Singularity,hs-jenkins-bot/Singularity,calebTomlinson/Singularity,evertrue/Singularity,tejasmanohar/Singularity,tejasmanohar/Singularity,evertrue/Singularity,HubSpot/Singularity