We have pleasure to work with RubyConf Taiwan to have a joint conference this year. We are looking for talks in several open-source related areas, please submit your proposal before May 10th, 2021. After the review process from the coordinators, we will publish the full programme in early June. 今年 COSCUP 我們很榮幸與 RubyConf Taiwan 合作舉辦聯合研討會，並且如往常，徵求各式各樣不同的 Open Source 相關稿件。請於 5 月 10 日前投稿，或可參考本頁下方各議程軌資訊。 Submit your proposal Important Dates Submission deadline: May 10th, 2021 （截稿時間） Full programme published: Early June （預定公佈時間） COSCUP 2021: July 31st - Aug 1 (with welcome party at July 30st night), at National Taiwan University of Science and Technology Tracks RubyConf Taiwan 2021 Chrome OS for Developer CLOUD NATIVE on Open Source Canal / 開源運河上的雲原生號 Let’s Read the Source Code / 帶您讀源碼 Enter the FLOSS World / 開源新手村 Open Source Chatbot 開放內容聯合軌 - OpenStreetMap 與 Wikidata PostgreSQL Bringing Open Source Software to Hardware System Software 鍵人谷：自我做鍵 From Beginner to Gopher 可能重要的 MySQL 三兩事 Aspe