Periodically change wallpaper using Danbooru
About this app
A Muzei 3.0 plugin for the (potentially NSFW) Danbooru imageboard, which sets the wallpaper to an (anime/manga-style) image matching the given tags.
Supports authentication to bypass account restrictions e.g. the default limit of a maximum of two tags. Additionally, the app tries to avoid NSFW images by default (although this is configurable), and there is the ability to preview potential matching images to be aware of what the wallpaper will be like.
Code of the Danbooru Image Board can be found at Github.
Licensed under GPL-3.0-or-later, by ForgottenUmbrella.
What's New in v2.2.0
Imported from the F-Droid repository index.
Version history
Apr 3, 2024 · 2.2 MB · Android API 19–34 · code 18
Imported from the F-Droid repository index.
SHA-256 21e23f904304ec72e9193f8bb513879baf955957b194de8333de370bb5eff076
Feb 24, 2024 · 2.6 MB · Android API 19–34 · code 17
Imported from the F-Droid repository index.
SHA-256 2e6685db78101e0f95d5bb41dd7d2ba8a6ef8496eceeb6f4f03995a66cf5973b
Jan 22, 2024 · 1.5 MB · Android API 19–34 · code 16
Imported from the F-Droid repository index.
SHA-256 15fd438f27be3ddc0cd64ccde6e4690fad25a083d03008d7ee8067ce2796c852
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.example.forgottenumbrella.cardboardmuseum is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 2.1.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Cardboard Museum first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Cardboard Museum, and a listing is removed when the evidence for it stops holding up.
Get Cardboard Museum
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Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
21e23f904304ec72e9193f8bb513879baf955957b194de8333de370bb5eff076
Signing certificate
e9d03bfa0cb4c0c8a6c03edfa5d606549f088ef369a2cdf84bb250e9f923369f
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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