grain.social/grain

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photography-focused photo sharing platform

Serve minimum app versions at /app-version.json

Merged chadtmiller.com asked to merge into main from grain.social/grain:app-version

static/app-version.jsonnew+10−0

AGENTS.md+15−0

		@@ -0,0 +1,10 @@
		`{`
		`"ios": {`
		`"minimumBuild": 0,`
		`"storeUrl": "https://apps.apple.com/app/id6747730230"`
		`},`
		`"android": {`
		`"minimumVersionCode": 0,`
		`"storeUrl": "https://play.google.com/store/apps/details?id=social.grain"`
		`}`
		`}`

		@@ -146,6 +146,21 @@ the ones grain.social publishes (`validateRecord` in
		`The same goes for any schema change: publishing it does not reach these servers.`
		`A write has to stay valid against the copy they ship until they upgrade.`

		`## Minimum app versions`

		`static/app-version.json`, served at `https://grain.social/app-version.json`,
		`is the oldest build of each app this server still serves. The iOS and Android`
		`apps read it on launch and on returning to the foreground, and a build below`
		`its minimum shows a full-screen "Update Grain" that cannot be dismissed. Each`
		`app remembers the last minimum it read, so a blocked build stays blocked`
		`offline.`

		The numbers are build numbers, not marketing versions: `ios.minimumBuild` is
		`CFBundleVersion` (`CURRENT_PROJECT_VERSION` in grain-ios's `project.yml`),
		`android.minimumVersionCode` is `versionCode`. `0` blocks nothing. Raise one
		`only once the build it names is live in its store, or people are told to`
		`install an update they cannot get.`

		`## Production debugging`

		Production is a single Hetzner host, `167.233.237.163`, running the appview,