John Maddock wrote:
Thanks Peter, I confess I hadn't realized they'd expanded to these other architectures.
Longer term, I confess I could never see how Travis or the other free providers could afford to do what they're doing and not be overwhelmed.
In this specific case I suppose they are using IBM-donated computing power which is a more sustainable "business model" than paying MacStadium or whoever. Github Actions is very usable and covers the common cases (gcc-4.7 to -10, clang 3.5 to 11, msvc 14.1 and 14.2, macos-10.15) so Travis can be used only for the rest (https://travis-ci.org/github/boostorg/core/builds/755272662). To enable Github Actions for your repo, just copy e.g. https://github.com/boostorg/core/blob/develop/.github/workflows/ci.yml into the same directory. No other steps are needed.