Open-source licenses

The Markus website (getmarkus.app) is built on open-source software. We are grateful to the maintainers and contributors behind these projects. This page lists the notable third-party components the website depends on, with their licenses and a link to each project’s source.

All components below are distributed under permissive licenses (MIT, ISC, Apache-2.0, BSD). Two build-time tools carry file-level copyleft licenses (MPL-2.0 and LGPL-3.0), noted in their own section. No component is licensed under GPL, AGPL, or SSPL.

Looking for the Markus desktop app’s notices? The application bundles its own third-party software (including the BlockNote editor under MPL-2.0, Tauri, and others). Those are listed inside the app, separately from this website page.

#Framework and UI

Component	License	Source
Svelte	MIT	github.com/sveltejs/svelte
SvelteKit	MIT	github.com/sveltejs/kit
Tailwind CSS	MIT	github.com/tailwindlabs/tailwindcss
Lucide (icons)	ISC	github.com/lucide-icons/lucide
bits-ui	MIT	github.com/huntabyte/bits-ui
mode-watcher	MIT	github.com/svecosystem/mode-watcher
svelte-sonner	MIT	github.com/wobsoriano/svelte-sonner
tailwind-merge	MIT	github.com/dcastil/tailwind-merge
tailwind-variants	MIT	github.com/heroui-inc/tailwind-variants
tw-animate-css	MIT	github.com/Wombosvideo/tw-animate-css
clsx	MIT	github.com/lukeed/clsx

#Content and markdown pipeline

Component	License	Source
Shiki (syntax highlighting)	MIT	github.com/shikijs/shiki
mdsvex	MIT	github.com/pngwn/MDsveX
unified / remark / rehype	MIT	github.com/unifiedjs/unified
gray-matter	MIT	github.com/jonschlinkert/gray-matter
js-yaml	MIT	github.com/nodeca/js-yaml
Paraglide JS (inlang)	MIT	github.com/opral/paraglide-js
sveltekit-superforms	MIT	github.com/ciscoheat/sveltekit-superforms
formsnap	MIT	github.com/svecosystem/formsnap
Zod	MIT	github.com/colinhacks/zod

#Build-time tooling with copyleft licenses

These two run only when the website is built (they are not shipped to your browser). They are used unmodified, through their public interfaces.

• lightningcss (MPL-2.0). CSS transformer used by Tailwind CSS. Source: github.com/parcel-bundler/lightningcss. The Mozilla Public License 2.0 text is available at mozilla.org/MPL/2.0.
• sharp / libvips (LGPL-3.0-or-later). Image optimizer used by @sveltejs/enhanced-img to generate responsive images. Source: github.com/lovell/sharp-libvips.

#MIT License

Most components above are provided under the MIT License. Copyright belongs to the respective authors, as stated in each project’s repository. The license text is reproduced once here:

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#A note on completeness

This page lists the notable direct components the website is built with. The full dependency tree includes additional transitive packages, also under permissive licenses (MIT, ISC, Apache-2.0, BSD). If you spot a missing attribution, please write to support@getmarkus.app and we will correct it.