Sealed is more than a style choice. It clarifies design, unlocks JIT optimizations, and keeps hot paths fast. Learn where it shines, when to avoid it, and how to stay testable with interfaces. Code snippets included.

Those params arrays are quietly feeding the GC. This drop shows how C# 13 params ReadOnlySpan makes hot-path helpers zero alloc, plus practical takes on IAsyncEnumerable streaming, long jobs, and faster APIs. #csharp #dotnet

This drop shows how IExceptionHandler tidies ASP.NET Core errors with chainable handlers and ProblemDetails. Plus quick hits on Aspire init, Zstandard in .NET 11, and multi-instance deployment. #aspnetcore #dotnet #csharp

Time bugs are sneaky and expensive. I wrote up a practical UTC-first approach for ASP.NET Core using DateTimeOffset and TimeZoneInfo so you can stop shipping "why is my order time wrong" bugs for good.

Minimal APIs feeling messy? This drop shows how MapGroup and endpoint filters bring order without controllers, plus SIMD-powered CSV parsing and EF Core migration cleanup. #csharp #dotnet #aspnetcore

In this drop, SearchValues<T> turns string scanning into a hot path rocket with SIMD doing the heavy lifting for 3-10x wins. Plus real-world takes on EF Core vs SQL at scale, MAUI on CoreCLR, and a tidier Process API. #csharp #dotnet

This drop unpacks C# patterns and .NET tooling that tame complexity in real apps. Learn what matters, why it works, and the pitfalls to skip. #csharp #dotnet #aspnetcore

This drop shows how [GeneratedRegex] makes regex compile-time fast, AOT friendly, and safer to ship. Plus a critical ASP.NET cookie patch, lean Marten endpoints, and Ubuntu's .NET 10 LTS news. #csharp #dotnet #aspnetcore

Fun with that disco ball profile pic let me to hours of iterating designs/prompts to generate profile pics for loads of US & global holidays. So, now my profile pic changes based on holidays/seasons. In memory of those who died so we could live free. Happy Memorial Day.

Finally! A trend I was literally made for!

Blazor prerender causing double fetches and a loading flicker? In this drop: carry state across the handoff with .NET 10's [PersistentState], plus quick wins with ULIDs, faster regex counts, and leaner foreach loops. #blazor #dotnet #csharp

Tired of scavenger hunts through Services and Interfaces folders every time you add an endpoint? I wrote up how I organize ASP.NET Core APIs with vertical slices using Minimal APIs, MediatR, and FluentValidation. baldbeardedbuilder.com/blog/from-la...

That while + Task.Delay loop is quietly drifting. This drop swaps in PeriodicTimer to keep background jobs on time and spotlights IdentityServer rate limits, cleaner Minimal APIs, and YARP as a lean gateway. #dotnet #csharp #aspnetcore

This drop solves the multi-impl problem with .NET 8 keyed services, from DI attributes to runtime resolution, no factories. Plus, EF Core named filters, Dockerfile-free images, and DPoP-hardened APIs. #dotnet #csharp #aspnetcore

Parallel.ForEach feels like free speed until your app gets slower. I broke down when parallel loops actually help in C#, the shared state trap, I/O pitfalls, and how to measure before you ship.

HybridCache in .NET 9 makes L1 + L2 caching a single call with stampede protection and tag invalidation. This drop also digs into Minimal APIs TryParse traps and containerizing .NET without a Dockerfile. #dotnet #aspnetcore

In this drop: real-time UI the simple way with SSE in Minimal APIs, when to pick it over SignalR, and how to fan out with Channels. Bonus bits: faster CI via test sharding and a tiny NTP client. #aspnetcore #dotnet #csharp

Ever had a production bug with zero audit trail to explain what happened? I wrote up how to build clean EF Core audit logging with interceptors that track who changed what and when, without cluttering your DbContext.

Compiled bindings in .NET MAUI turn silent binding bugs into build-time errors and make lists scroll like butter. This drop also peeks at Zstandard in .NET 11 and a sneaky Dapper nvarchar perf trap. #dotnet #csharp #maui

.NET 10 made API validation faster through precomputed metadata and fewer allocations. I broke down what changed under the hood, why your p95 latency improves, and how to benchmark it yourself. No code changes needed.

... somethings wrong with me. Why do I get the urge to compliment Copilot CLI after it does good work? It's like I'm working with a junior developer and I'm trying to build it's confidence. "Good work today. That was a clever solution to ..."

This drop shows how C# 14 extension blocks turn helpers into real members with properties and statics, so APIs read clean and features are easier to find. Plus logging lessons and a Dapper string gotcha that can wreck index seeks. #csharp #dotnet

Still doing TryGetValue then set? This drop shows a one-lookup ref that makes Dictionary upserts faster, and digs into async vs scale, CLI-first wins, and DotNet Inspect for calmer containers. #csharp #dotnet

Dropped a new release of my Weather extension for Command Palette. Dock support included with current conditions + hourly/daily forecasts. Pick it up on the MS Store (and Winget soon.) apps.microsoft.com/detail/9N01D...

Time you can fake, tests you can trust. This drop breaks down TimeProvider, plus a neat Aspire patch, zero-install .NET demos in the browser, and a swappable local voice AI pipeline. #dotnet #csharp #aspire

I finally wrote the guide I wish someone had handed me years ago: a dead‑simple breakdown of typeof, GetType(), and IsAssignableFrom(). If you’ve ever stared at a type check thinking “this feels right… probably?”, this’ll clean that up fast. baldbeardedbuilder.com/blog/stop-gu...

Hot paths overheating? In this drop we chill them with FrozenDictionary/FrozenSet for build-once, read-many speed on configs and feature flags. Plus EF Core polymorphism tradeoffs and Rx.NET 7 for real-time vibes. #csharp #dotnet #efcore

Type safe unions, durable AI agents, and bloat free Blazor land in this drop. Patterns for saner APIs and SaaS using exhaustive matching, tenant aware throttling, and faster reads with Azure Redis. #csharp #dotnet #aspnetcore

Speed and safety in this drop: the real cost of string length checks, faster async await in .NET 11, and SBOM baked into NuGet for sane audits. Plus, MAUI XAML with C# expressions that kill noisy converters. #csharp #dotnet #dotnetmaui

This drop swaps brittle role checks for permission-based auth and solves multi-node cache drift with HybridCache plus Redis. Plus, Wolverine-powered resilience and a cleaner, provider-agnostic .NET AI stack. #dotnet #aspnetcore #redis

This drop jumps from on-device CLIP embeddings in .NET to a tidy Stripe Checkout in ASP.NET Core, showing how these pieces work in real apps. Plus a peek at LINQPad 9's AI and why EF Core may be the 2026 default. #csharp #dotnet #efcore

Small choices, big wins. This drop shows how to keep industrial cameras streaming, force real WebView2 refreshes, validate EF Core before SaveChanges, and pick StartsWith for faster hot paths. #csharp #dotnet #efcore

Today's drop tackles patterns that ship sturdier apps faster: DTOs for stable Minimal APIs, secure Azure uploads with the Valet Key, and single-file tools via #:package. Also, some no-nonsense reflection and activator tips. #csharp #dotnet #aspnetcore

This drop nails real wins: faster API validation in .NET 10, Minimal API myths busted, and MAUI C# expressions that clean up XAML. Also, a calm tour of post-quantum crypto and safer EF Core config. #dotnet #csharp #efcore

This drop tames gnarly config with clean Options, rethinks validation with Zeta, and shows how single-file C# turns quick ideas into real tools. Plus, a peek at EF Core LINQ so you know how those lambdas become SQL. #dotnet #csharp #efcore

One of the most common questions on my EF Core videos? Repositories or just DbContext? Here's my answer. #dotnet #csharp #efcore

This drop spotlights C# 14 ?.= and the new field keyword for cleaner, safer updates. Plus hybrid caching to dodge stampedes, OData 9 upgrade notes, and a MAUI patch that may nudge Android layouts. #csharp #dotnet #dotnetmaui

Rebuilt my website recently and my favorite new feature is blog post previews before they're released. 7 days before a post is released it shows on the website as a teaser. Also, new post coming Monday...

This drop zeroes in on real-world wins: the Content-Type charset gotcha behind ghost 404s in ASP.NET Core, sane message ordering with outbox and sagas, and a C# 15 idea to pre-size and fine-tune collections. #dotnet #aspnetcore #csharp

Missing my mom today. Received news that I'm stoked about, and know she'd be proud. Can't share it with her, so you're up. A year of good diet & exercise means I've lost ~40lbs. Doc told me this AM my bloodwork is perfect and I should stop taking my blood pressure medicine. 💪

In this drop: evolve APIs without breaking clients, choose the right background jobs, and tap C# 14 lambdas in .NET 10 for leaner, faster code. There is even a glimpse of open agent standards in .NET. #dotnet #csharp #aspnetcore

Inside this drop: VS 2026 AI that speeds refactors and debugging, resilient APIs with Polly 8, and encrypted JSON without converters using a TypeInfoResolver. Plus, Aspire pipes resource settings into Azure Functions for you. #dotnet #csharp #aspnetcore

A new @dotnetdrip.com has... dropped? Fresh, .NET-only content hitting mailboxes every Monday, Wednesday, and Friday. dotnetdrip.com/archive/2026...

Continuing my "words from American poets" theme: "Oops, I did it again." #csharp #dotnet

In the words of those American poets, the Backstreet Boys, "OMG, we're back again." First blog post in a long time! Let's talk about the new right and left joins in EF Core 10. #dotnet #efcore #csharp baldbeardedbuilder.com/blog/cleaner...

The speech extension in @vscode.dev really makes @github.com Copilot feel like magic. I've been using Copilot CLI for a week and even though @scott.hanselman.com turned me on to handy.computer, I miss a wake word like "hey code" and I miss the "auto enter after n seconds of silence."

💡 We're exploring a new idea for PowerToys Command Palette: a configurable dock where you can pin your favorite commands and extensions for quick access. For examples and proof-of-concept code, check out the issue - we'd love your feedback 👇 github.com/microsoft/Po...

So, freaking proud of my 10yo. Over the holiday break I was vibe-coding and fell in love with @github.com Copilot CLI. Nate's been dying to make video games and I realized this was his chance. Set him up with a MS Surface, MS Terminal, and bang! Check the 🧵for his current progress and link to play.

Azure.AI.Translation.Text 2.0 beta arrives with LLM translations, tone control, and model selection, plus some notable breaking changes you will want to prep for. A tidy rundown of what is new and what to update in your code. #dotnet #csharp #azureai

🪟 PowerToys 0.97 just dropped! 🎉 ✨ Major Command Palette upgrades 🖱️ New CursorWrap mouse utility ⚡ Faster Quick Access flyout ⌨️ Expanded CLI support Check out what’s new 👇 devblogs.microsoft.com/commandline/...