Top 20 NuGet system Packages

Enrich Serilog event with environment variables.
Provides Managed Service Identity Management (Fluent) capabilities for Microsoft Azure.
Generate Audit Logs from file system events using a FileSystemWatcher
An API documentation can be found at https://help.cryptolens.io/api/dotnet/. This is a client API that serves as an interface to Cryptolens Web API (app.cryptolens.io/docs/api/). NB: There is also one for C++ (https://github.com/Cryptolens/cryptolens-cpp)
Orc.SystemInfo library.
PCL Extension provides file system implementations for PCL, .NET Framework, .NET Core, Xamarin.iOS, Xamarin.Android and Xamarin.Mac. This makes it easier to create cross-platform .NET libraries and apps. Supports .NET Standard now. UWP support is temporarily removed.
HealthChecks.System is the system health check package.
This is a .NETStandard/ .NET Core port of the the Microsoft assembly for the .Net 4.0 Dynamic language functionality.
Dynamic Linq extensions for Microsoft.EntityFrameworkCore which adds Async support
This C# library provides units management in different measure system (International System, CGS, Imperial system and US).
This package contains file-system extension for the CG.IO namespace. Platforms supported: .NET 4.61 or above .NET Standard 2.0 or above
Aurochses.Runtime is a library based on System.Runtime.
Compression (Deflate / GZip) module for Microsoft OWIN self host web server. With this module you can compress, deflate / gzip large files (like concatenated *.js or *.css files) to reduce amount of web traffic.
This package adds a new section with the following tools: - Umbraco logs manager: to view and delete Umbraco DB Logs events and to view the TraceLog (this new function is a simplified version of Diplo Trace Log Viewer project - https://our.umbraco.org/projects/developer-tools/diplo-trace-log-...
Some code help manage system
DevExpress.XAF.Extensions.System
Advanced Windows system information tools.
Bumblebee is a .NET layer on top of the Selenium browser automation framework allowing for standardized creation of page objects, even for dynamic web pages.
.NET file system for portable FTP server
Extensions to expose lists, collections, dictionaries, and enumerables as read-only. IList<T>.AsReadOnly() ICollection<T>.AsReadOnly() IDictionary<TKey,TValue>.AsReadOnly() IEnumerable<T>.AsReadOnly()