Summary
If you're one of the Realm users staring down that September 30, 2025 sunset deadline, this is your migration playbook. It covers the complete path from Realm to SwiftData with iOS 17+ support, though the author recommends iOS 26+ and Swift 6 for strict concurrency. The 948 GitHub stars and 168 installs suggest people are actually using this in production, which matters when you're making a database migration. Budget 2-8 weeks for a real app migration according to the guide itself. It's reference documentation, so expect completeness over hand-holding, but that's probably what you need when you're moving your entire data layer anyway.
Install to Claude Code
npx -y skills add charleswiltgen/axiom --skill axiom-realm-migration-ref --agent claude-codeInstalls into .claude/skills of the current project.
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
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Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Notes, actions and memory. Without a meeting bot. First month 100% off.
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
Connect your Claude agent to live crypto prices and trading routes via 1inch
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Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
