Standing on our own two feet
For some reason, Let's Encrypt failed to mention that older versions of Android can just import the ISRG Root X1 certificate, which solves the problem for all apps.<p><a href="https://www.stoutner.com/lets-encrypt-isrg-root-x1-and-privacy-browser/" rel="nofollow">https://www.stoutner.com/lets-encrypt-isrg-root-x1-and-priva...</a>