This guide shows how to combine FusionCache's in-process L1 memory with a shared Redis L2 layer in a product catalog API. The author keeps Clean Architecture boundaries intact and focuses on correct cache behavior rather than raw speed numbers. It is a practical starting point for developers who run several instances and need to plan freshness and invalidation.
The article examines what a .NET AI agent does when its own guardrails fail, such as a throwing guard, a down classifier, a missing caller or miswired middleware. The author deliberately breaks each guard layer and shows how to make the request blocked instead of silently allowed. It ends with a practical checklist for developers building guarded agents.
EF Core 10 with Npgsql 10 maps a .NET complex type to a PostgreSQL jsonb column using ToJson(). The article shows how LINQ property access becomes ->> SQL, which index types serve which queries, and when a jsonb column beats a separate EAV table. It is a practical guide for models with many sparse optional fields.
A team moving a relationship-heavy system from MySQL to graph databases reports that a recursive CTE collapsed at around 500 million rows. The author built a reproducible benchmark comparing the CTE, a C# breadth-first search on the same MySQL tables, and NebulaGraph. The results suggest the CTE's design, not the relational engine, caused most of the delay.
SQL Server error 1934 appears when a statement uses a feature such as a filtered index while the session has QUOTED_IDENTIFIER off. The author explains why the ASP.NET Core application never sees it while the classic sqlcmd does, and how the setting interacts with stored procedures. Useful for anyone who updates ASP.NET Core Identity tables by hand.
Obfuscators rename members and types, and Json.NET reads those CLR names to write JSON keys and $type discriminators, so payloads change without any error. The article explains how to pin wire names with [JsonProperty], [EnumMember] and a stable ISerializationBinder, and how to test the protected build.
Schemity, a desktop ERD tool, read two real SQLite schemas, Campfire on Rails 8 and Jellyfin on EF Core 10, and rebuilt database files from the SQL it wrote. Before the fixes, declared column types, partial and expression indexes and AUTOINCREMENT settings were lost. The post is a useful case study for anyone who edits or migrates SQLite schemas with a tool.
A developer's hands-on testing surfaced eight .NET MAUI accessibility problems that XAML alone does not reveal, covering screen reader names, headings, font scaling, and contrast. Each issue comes with a concrete fix or test step, which makes this a practical checklist before shipping a MAUI app.