In Alpine mirror through apK add installation software is very slow, because the default official source in the domestic access speed is not good, this time can be changed to the domestic Ali or UNIVERSITY of Science and Technology mirror source through the following method, the speed immediately up:

Ali mirror

sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
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Mirror at hkust

sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/g' /etc/apk/repositories
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