EAS build config

eas build will use yarn if you have a yarn.lock file. if you use npm and want to use --legacy-peer-deps, you can set this in your .npmrc. you can create a .npmrc file in your project with the legacy-peer-deps option set or run npm config set legacy-peer-deps true in an eas-build-pre-install hook

.npmrc

save-exact=true
package-lock=true
legacy-peer-deps=true