I made these apps myself, and I used SvelteKit, which has a page in the docs with some code you can copy-paste to make apps work offline: https://kit.svelte.dev

I made these apps myself, and I used SvelteKit, which has a page in the docs with some code you can copy-paste to make apps work offline: https://kit.svelte.dev/docs/service-workers https://kit.svelte.dev/docs/service-workers