Software
The thesis is simple: your data is more private when it lives on hardware you control. No one is training a model on it, scanning it for ads, or changing the terms of service while you sleep. Almost every service below has a polished commercial equivalent — often a good one. I run the open-source version because it keeps my data local, my costs flat, and my understanding deep.
There are real trade-offs. You become the support team. Backups are your problem. Upgrades are your call. If that sounds like work rather than fun, the cloud app is the right answer — no shame in that. But if you value the ownership and enjoy understanding how things fit together, running your own stack is worth it.
Virtualization & Platform
vs. VMware vSphere / ESXi, Nutanix
vs. Veeam Backup & Replication
Networking & Access
vs. Fortinet / Cisco firewalls
vs. Cloud load balancers / managed reverse proxy
vs. ngrok, Tailscale Funnel
vs. Corporate VPN, Zscaler / Twingate (ZTNA)
vs. Commercial NPM / Darktrace
vs. Ookla Speedtest, commercial WAN monitors
Identity & Secrets
vs. Okta, Microsoft Entra ID
vs. AWS Secrets Manager, CyberArk / Delinea
CMDB & Inventory
vs. ServiceNow CMDB, Device42
Containers & Dashboards
vs. Docker Desktop, Rancher
vs. (mostly a self-hosted-only niche)
vs. Netlify / GitHub Pages / S3 static hosting
Source Control & Docs
vs. GitHub, GitLab
vs. Lucidchart, Microsoft Visio
Observability & Security
vs. Datadog, New Relic
vs. Pingdom, UptimeRobot
vs. Splunk, CrowdStrike Falcon
vs. Pushover, PagerDuty
Remote Access
vs. Citrix, TeamViewer
Smart Home
vs. Samsung SmartThings, Google/Alexa ecosystems
Local AI
vs. OpenAI API direct, OpenRouter
Homegrown automations (blogs deferred this run)
Morning briefing write-up soon
Sports alerts write-up soon
Telegram bot write-up soon
eBay deal hunter write-up soon
Security audit workflow write-up soon
Claude usage tracker write-up soon