| Buffer's | Memory buffers |
| Loggin | Logging information |
| Asynchrony | Asynchronous utility functions |
| File System | Asynchronous access to the file system |
| Streams | Streaming data |
| IP addresses | Raw IP4 or IP6 addresses |
| URL | URL parsing |
| MIME Types. | MIME type functionality |
| ▼TCP Connections | Communication over the TCP protocol (reliable streaming) |
| Low level TCP Connections | Low level functions to access TCP |
| ▼HTTP Connections | Communication over the HTTP 1.1 protocol |
| HTTP Setup | Initiating HTTP servers or clients |
| HTTP Input and Output. | HTTP incoming and outgoing data |
| HTTP Server Requests and Responses. | Implicit bindings for HTTP incoming- and outgoing data for a server |
| HTTP Static Content Server. | Serve static content over HTTP 1.1 |
| HTTPS secure connections | Secure connections over HTTPS |
| TTY | Terminal input and output |
| Various | Various utility functions |
| Memory Allocation. | Routines for safe memory allocation based on using |
| ▼Effect Handlers | Library for algebraic effect handlers in C |
| Generic Values | Generic value representations |
| Handlers | These are the primitives to define effect handlers and yield operations |
| Debugging | Helpers for debugging and custom allocators |
| Effect Definition helpers | Macros to define effect handlers |
| Linear Handlers | Linear handlers can be scoped inline and are very efficient |
| Exceptions and Finally clauses | Functions for standard exceptions and finally handlers |
| Implicit Parameters | Functions to easily define and use implicit parameters |