Explore the results of the Stack Overflow 2019 developer survey (https://insights.stackoverflow.com/survey/2019). Ask simple questions (e.g., "who uses Python?") to hear about the most important trends for data subsets. Say "Example" to hear more invocation examples. We appreciate feedback, thanks for filling out a survey after using the app: https://docs.google.com/forms/d/e/1FAIpQLSd3ZS9OS0G4AGESetVMLj0mrb0-HTxaucxKxbH_9k6Rs-TuyQ/viewform?usp=sf_link. Developer Facts is a project of the Cornell Database Group (https://www.cs.cornell.edu/database/vocalization.php). The Stack Overflow developer survey data is made available under the Open Database License: http://opendatacommons.org/licenses/odbl/1.0/. Any rights in individual contents of the database are licensed under the Database Contents License: http://opendatacommons.org/licenses/dbcl/1.0/.