Trying to understand OTP apps a little better and distribution

I was thinking: What if I could abstract some of my otp applications from in my phoenix app and move them to another server? I got this idea because I wanted to see if I could not put one of my 3 free 256mb VMs from fly.io to use since I was hitting a out of memory error. [info][ 41.509215] Out of memory: Killed process 255 (beam.smp) total-vm:1880020kB, anon-rss:141076kB, file-rss:0kB, shmem-rss:69636kB, UID:65534 pgtables:624kB oom_score_adj:0 [error]could not make HTTP request to inst

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Got a message about power supply being disconnecting if bill not