diff --git "a/source/_posts/0004 Formal science/\350\256\241\347\256\227\346\234\272\347\247\221\345\255\246\346\212\200\346\234\257 Computer science/cs wiki.md" "b/source/_posts/0004 Formal science/\350\256\241\347\256\227\346\234\272\347\247\221\345\255\246\346\212\200\346\234\257 Computer science/cs wiki.md"
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--- "a/source/_posts/0004 Formal science/\350\256\241\347\256\227\346\234\272\347\247\221\345\255\246\346\212\200\346\234\257 Computer science/cs wiki.md"	
+++ "b/source/_posts/0004 Formal science/\350\256\241\347\256\227\346\234\272\347\247\221\345\255\246\346\212\200\346\234\257 Computer science/cs wiki.md"	
@@ -360,3 +360,37 @@ A Jakarta Servlet is a Java class[1] in Jakarta EE that conforms to the Jakarta
 .NET 是一个开发人员平台，由工具、编程语言、库组成，用于构建许多不同类型的应用程序。
 
 ASP.NET 使用专门用于生成 Web 应用的工具和库扩展了 .NET 开发人员平台。
+
+## Jamstack
+
+Jamstack, previously stylized as JAMStack, is a web development architecture pattern[1] and solution stack. The acronym "JAM" stands for JavaScript, API and Markup (generated by a static site generator)
+
+In Jamstack websites, the application logic typically resides on the client side (for example, an embedded e-commerce checkout service that interacts with pre-rendered static content), without being tightly coupled to a backend server. Jamstack sites are usually served with a Git-based or ***headless CMS***.
+
+## Headless content management system
+
+A headless Content Management System, or headless CMS, is a back end-only web content management system that acts primarily as a content repository. A headless CMS makes content accessible via an API for display on any device, without a built-in front end or presentation layer. The term 'headless' comes from the concept of chopping the 'head' (the front end) off the 'body' (the back end).
+
+## flutter
+
+Flutter is an open-source UI software development kit created by Google. It is used to develop cross platform applications from a single codebase for any web browser,[4] Fuchsia, Android, iOS, Linux, macOS, and Windows.
+
+### flet
+
+The fastest way to build Flutter apps in Python
+Flet enables developers to easily build realtime web, mobile and desktop apps in Python. 
+
+## fuchsia
+Fuchsia is an open-source capability-based operating system developed by Google. In contrast to Google's Linux-based operating systems such as ChromeOS and Android, Fuchsia is based on a custom kernel named Zircon.
+
+### capability based
+
+Capability-based security is a concept in the design of secure computing systems, one of the existing security models. A capability (known in some systems as a key) is a communicable, unforgeable token of authority. It refers to a value that references an object along with an associated set of access rights. 
+
+## exploit
+
+An exploit is a piece of software, a chunk of data, or a sequence of commands that takes advantage of a bug or vulnerability to cause unintended or unanticipated behavior to occur on computer software, hardware, or something electronic.
+
+## osmand
+OsmAnd is a map and navigation app for Android and iOS. It uses the OpenStreetMap map database for its primary displays, but is an independent app not endorsed by the OpenStreetMap Foundation.
+
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