土日は休み. 2020年のことについて多分書く. <https://mstdn.home.neso.tech/@neso> 過去 2018 <https://adventar.org/calendars/3081> 2019 <https://adventar.org/calendars/3886></https://adventar.org/calendars/3886></https://adventar.org/calendars/3081></https://mstdn.home.neso.tech/@neso>