I set it in ~/.local/container/config/containers/storage.conf.
And setting like the following.
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[storage]
driver = "overlay"
[storage.options]
additionalimagestores = ["/export/home/myuser/.local/share/containers/storage"]
[storage.options.overlay]
mount_program = "/export/home/myuser/.local/container/bin/fuse-overlayfs"
mountopt = "nodev,fsync=0"
[storage.options.thinpool]
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And I have setting the environment like the following.
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export XDG_CONFIG_HOME=$PROGRAM/config
export XDG_DATA_HOME=/tmp/$UID/$RANDOM/share
export XDG_RUNTIME_DIR=
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