Developers rent API docs, monitoring, secrets and webhook plumbing by the month for side projects that earn nothing yet. Self-hosted pay-once utilities cost less than one month of the SaaS they replace.
The tool this job usually means renting is Backblaze Personal, at $9/mo — roughly $108 a year, every year. Syncvault does the job for a one-time $29 — running locally on your own machine.