Template Working Now 🐘 smui-sapper-rollup-template How to use For GitHub-Pages (GitLab-Pages) 0. Create Repository From This 0-A. Open https://github.com/koumaza/smui-sapper-rollup-template/generate 0-B. Enter your like repo name in Repository Name * 0-C. Enable Include all branches checkbox 0-Z. Create Repository 0.1. Alternative method (not recommend) 0.1-A. Open https://github.com/new/import 0.1-B. Enter https://github.com/koumaza/smui-sapper-rollup-template in "Your old repository’s clone URL" 0.1-C. Enter your like repo name in Repository Name * 0.1-Z. Create Repository 1. Replace to your information src/server.js ... .use process.env.BASE_NAME || '/smui-sapper-rollup-template', ... Before After process.env.BASE_NAME || '/smui-sapper-rollup-template', process.env.BASE_NAME || '/YourRepositoryName' , package.json Replace to your identify! 2. Enable Dependabot 3. Repository Configuration 3-A. Check default branch If already set other than master, set to master 3-B. GitHub-Pages (GitLab-Pages) Enable feature (Or, deploy to GitLab-Pages) 4. Rewrite README.md Rewrite for your thing, and enjoy! Refer to https://github.com/kafai97/sapper-smui-boilerplate hperrin/svelte-material-ui#361