GrowthBook is the more mature option and does a lot more (experimentation analysis, stats engine, dashboards), but that's also the problem for a small team - it wants its own server or cloud account and a real setup investment. dif.sh is the opposite bet: it does one narrow thing (flags as reviewable markdown) and gets out of the way, which mattered more for us than the extra analytics power right now.
dif.sh
Thank you so much for the review and your thoughtful feedback! Any merge conflicts are handled through git merge directly. We will keep you in the loop as we move the product forward.