How does the codesandbox.io code work?

how does the code for codesandbox.io run?

for example, this example: https://codesandbox.io/s/kmow.

clipboard.png

it keeps talking about download dependency, but it hasn"t responded for a long time. Do you want to click somewhere or something?

Mar.16,2022
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e458b5-4386e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e458b5-4386e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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