The Kobweb CLI complains that Java is not available even when Java is available

[CLOVIS-AI]

Reproduction via docker:

FROM archlinux:base

RUN pacman -Syuu --noconfirm jre21-openjdk-headless wget tar
WORKDIR /root
RUN wget https://github.com/varabyte/kobweb-cli/releases/download/v0.9.17/kobweb-0.9.17.tar; tar -xvf kobweb-0.9.17.tar; rm *.tar; mv kobweb-* /opt/kobweb
ENV PATH="$PATH:/opt/kobweb/bin"

java -version is available, but running the kobweb fails with:

ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation.

[CLOVIS-AI]

Workaround: add

ENV JAVA_HOME="/usr/lib/jvm/default"

Still, it would be better UX if Kobweb could find the JDK autonomously.