之前用 Revue 做 email newsletter ，本來都好好地，但後來發現 open rate 非常之低，所以試吓轉用 substack ，睇吓會唔會好少少。
我亦都自把自為咁將 Patreon 同 hongkong.unsubject.com 嘅朋友加入，希望你唔介意。
當然，如果唔再收到太多 email 嘅，我絕對明白；unsubscribe 我唔會有 hard feeling 。
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