1x Hetzner CPX31 VPS: 4 VCPU, 8GB RAM, 160GB DISK (~$15/m)
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* Mailchimp ~95$/m
-> Listmonk + Mailgun (few $, pay as you go)
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* Retool ($20/m), Chargebee ($750/m)
-> Transitioned through Appsmith (0$), but decommissioned it in favour of a custom Flask app + local Postgres + Xero API (took 1 month) ($0/m)
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* Codacy ($36/m)
-> various linters in CI + deps security scanners (free)
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* Azure DevOps (private repo) ($86/m)
-> ditched Microsoft-hosted agent pool (many slow, expensive "cloud" agents w/ limited build hours) to 1 free, self-hosted agent (my VPS) $0/m. Planning to move to Circle CI Free account with up to 5 free self-hosted agents.
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* Zapier ($30/m)
-> N8N on my VPS ($0/m)
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* AWS RDS ($50/m)
-> Localhost Postgres ($0/m): this is so underrated. Hosting the DB on the same server with apps is faaaaast! Cron script to backup it all locally AND to S3 daily.
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* AWS Cloudfront (IDK, non free)
-> Cloudflare proxied DNS (free)
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Extra details
* Authentication to all hosted company services happens at the edge via Cloudflare Zero Trust (also free)
* All services are proxied by Cloudflare "DNS"
* Nginx allows HTTP access only from Cloudflare IP range (for security)
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FUTURE PLANS
* Hosted Wordpress ($29/m)
-> Cloudflare Pages (maybe some workers too) much faster & for free
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* AWS S3 (~$40/m)
-> Wasabi.com (IDK, much less)