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The original was posted on /r/selfhosted by /u/KiloAlphaIndigo on 2025-06-24 15:56:00+00:00.
Ever since switching from Android to iOS many years ago, I made the decision to only use apps I could easily migrate away from should I need/want to move away from Apple for any reason. This also extended to Google (Google Photos, Gmail etc.) as I wanted to take more 'ownership' over my data as best I could.
With this in mind, recently I decided to move away from Synology's native apps which I depend on everyday such as their Photos, CardDAV and CalDAV services (Synology Photos, Synology Contacts, Synology Calendar, and Synology Drive!)... no medals for guessing why!
After consulting selfh.st/apps and looking through the options, sometimes it can be difficult to find what's hot and exciting when replacing these more... mundane services, they just aren't as exciting to discuss on r/selfhosted or r/homelab as almost anything else. With that in mind, what apps/services that you deem essential have you started using in place of *insert big brand name here*?
In particular I'm looking for a replacement for CalDAV, CardDAV and File Management - what are you recommendations?
As so many others, I prefer to run everything containerised in Docker, something lightweight and super stable.
TLDR: What essential apps have you successfully managed to replace with a selfhosted version?
Also - what are you using as CalDAV, CardDAV and File Management?