User followed README using %APPDATA% in -Xbootclasspath/a: and the official
Mojang launcher passed the literal string through to Java without expanding
it, so boot classpath ended up empty and video stayed black despite all 4
JavaCV jars being present.
Replaced the %APPDATA% example with an absolute C:\Users\<name>\AppData\
Roaming\... template, added a callout warning that the launcher does not
expand env vars in JVM args, and pointed at `echo %APPDATA%` from cmd as the
way to discover the right path.
Also corrected the ffmpeg jar filenames: the bundle zip uses the short form
(e.g. ffmpeg-windows-x86_64.jar), not the Maven-style
ffmpeg-8.0.1-1.5.13-windows-x86_64.jar.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
User reported Incompatible-mods crash because they downloaded
fabric-api-0.140.2+1.21.11.jar from Modrinth (Modrinth's version-filter URL
param does not always restrict the listing to the requested game version).
Replaced the generic search-page link with the direct CDN URL of
fabric-api-0.149.0+26.1.2.jar and added a callout telling readers to verify
the filename suffix ends in +26.1.2.jar.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Previous README used "방법 A/B/C" terminology that confused readers and
recommended Prism over the official launcher. Per user feedback, restructured
into a step-by-step guide assuming the official Mojang launcher:
1. boot 26.1.2 vanilla once to create .minecraft
2. run fabric-installer-1.x for client / 26.1.2 / loader 0.19.2
3. open .minecraft/mods (per-OS instructions)
4. drop fabric-api + video_player-0.4.1.jar, remove old versions
5. install JavaCV — two routes:
5-A. Prism Launcher (easiest)
5-B. official launcher via -Xbootclasspath/a: with Windows/macOS/Linux examples
6. verify with /videostick
Moved Maven coords to a developer footnote. Added install verification step
to disambiguate "missing texture" symptom from leftover old-version jars.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
