Hacker News Comments: https://news.ycombinator.com/item?id=15511962
Source: https://blog.twitter.com/official/en_us/topics/company/2017/safetycalendar.html
Chirp! is a social network. It runs on GNU social, version 2.0.1-beta0, available under the GNU Affero General Public License.
All Chirp! content and data are available under the Creative Commons Attribution 3.0 license.