COVID-19 has transformed face-to-face software development into distributed development (e. g., remote work). While the company authors belong to studies microtask programming, an open source software (OSS) -like development, as a solution to employ distributed development, a prior study reports a challenge: online communication in microtask programming takes longer; such lengthy communication discourages developers and affects their completion of assigned tasks. OSS, however, is successfully developed using online communication, such as issues. Hence, we have a question: how does OSS address the online communication challenge? In this experience report, we answer this question based on an empirical study on OSS communication. We found that (1) OSS prefers burst communication similar to face-to-face development, and (2) attracting developers’ attention may be a possible solution. Based on the findings, we discuss the direction of future studies to achieve better online communication in microtask programming in the company. The main contributions of this report are (1) to empirically reveal the actual communication times in OSS and (2) to show how an empirical approach helps industrial collaborators.