結論
node-gyp
を入れる。
現象例
以下のような感じで npm / yarn で入れるときにエラーが出る場合です。
➤ YN0007: │ deasync@npm:0.1.21 must be built because it never has been before or the last one failed ➤ YN0009: │ deasync@npm:0.1.21 couldn't be built successfully (exit code 1, logs can be found here: /tmp/xfs-0c891e14/build.log) ➤ YN0000: └ Completed in 4s 514ms