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Fati Iseni @fiseni.com · 18/05/2026

NuSeal primary focuses on licensing, e.g. dual licenses. That's quite small pool of authors. On the other hand, way more projects and authors use sponsorships, and SponsorCheck is a better fit.

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Fati Iseni @fiseni.com · 17/05/2026

Looks great! I started a similar project some time ago (offline build time license validation). I think your project will have more traction, so if there is anything you like in NuSeal, let me know and I'll try to port the features to SponsorCheck. github.com/fiseni/NuSeal

github.com

GitHub - fiseni/NuSeal: A .NET library that helps you protect your NuGet packages with commercial licenses.

A .NET library that helps you protect your NuGet packages with commercial licenses. - fiseni/NuSeal

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Fati Iseni @fiseni.com · 13/05/2026

I'd say it's a win. The decrease in allocations across the table is more important in this context. Yea, a bit slower in specific scenarios but less pressure on GC would yield better perf overall.

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Fati Iseni @fiseni.com · 15/04/2026

I always have to remind myself what do I need to configure to publish NuGet for various package types (lib, msbuild packages, analyzer packages, source-only, etc). Here I consolidated all of them. #dotnet #csharp github.com/fiseni/confi...

github.com

config/nuget-templates/src at main · fiseni/config

Various configuration for Pozitron projects. Contribute to fiseni/config development by creating an account on GitHub.

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Fati Iseni @fiseni.com · 10/04/2026

I was holding a demo on structs. No surprise new devs are confused with all the concepts. readonly, ref, in, record struct.. 🤯 Btw, using the `ref` keyword to mark that struct can't live in the heap is the most counterintuitive term ever.

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Fati Iseni @fiseni.com · 09/04/2026

Zero-GC as nothing in heap, only stack? If that's your aim, refactor everything as 'ref struct'. That's the only way to ensure nothing will escape into heap. But, do you think stack will be enough? It's only 1mb on windows i think (it's 8 on linux)

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Fati Iseni @fiseni.com · 09/04/2026

I tried implementing them and now compiles. PS. If you're coming from C/C++, be aware that structs behave a bit differently in C#. It's worth being careful about defensive copies and boxing, especially for fat structs. github.com/Egodystonic/...

github.com

Implement TransformedShape and TransformedConvexShape by fiseni · Pull Request #147 · Egodystonic/TinyFFR

Implemented the interfaces in TransformedShape and TransformedConvexShape. The project compiles now. I have some knowledge, but I'm not an expert in graphics. Please cross-check my transformati...

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Fati Iseni @fiseni.com · 09/04/2026

Right now it's not compiling, right?

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Fati Iseni @fiseni.com · 09/04/2026

Lovely! I'll go through it someday soon.

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Fati Iseni @fiseni.com · 09/04/2026

Do you ever want to quickly measure code execution time while debugging? Just released DebugTimer — a simple source-only .NET package for development-time performance diagnostics. #dotnet #csharp github.com/fiseni/Debug...

github.com

GitHub - fiseni/DebugTimer

Contribute to fiseni/DebugTimer development by creating an account on GitHub.

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Fati Iseni @fiseni.com · 08/04/2026

If anyone needs help with an OSS project, or perhaps you just want a review, hit me up. #dotnet #csharp

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Fati Iseni @fiseni.com · 04/04/2026

I tested it. It's stable. fyi, I added few notes in the PR.

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Fati Iseni @fiseni.com · 03/04/2026

This is a really nice feature. @simoncropp.bsky.social extra responsive as always ❤️

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Fati Iseni @fiseni.com · 31/03/2026

Ok, this covers it better. Actually, no need to correlate Customer.Id with Address.CustomerId. It's enough to have unique strings per scope.

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Fati Iseni @fiseni.com · 31/03/2026

I quickly created this converter now. Not optimized, but just as POC. Is there an easier way? Or custom converter is the way?

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Fati Iseni @fiseni.com · 31/03/2026

That's the same argument in C++ community in the last 15 years :)

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Fati Iseni @fiseni.com · 31/03/2026

Who thinks it's a good idea to copy C++ in terms of notoriously complex rules?

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Fati Iseni @fiseni.com · 31/03/2026

Is there a Verify scrubber for int Id values? Something that detects correlations as well, e.g. Customer.Id should be same as Address.CustomerId. @simoncropp.bsky.social

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Fati Iseni @fiseni.com · 24/02/2026

I'm playing with extension properties, and I'm curious why overloading is not allowed. It works just fine for methods. #csharp #dotnet

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Fati Iseni @fiseni.com · 17/10/2025

This was heavily downvoted on reddit :)

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Fati Iseni @fiseni.com · 14/10/2025

If an argument lasts more than 5 minutes, then both sides are wrong.

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Reposted by Fati Iseni

simoncropp.bsky.social @simoncropp.bsky.social · 09/10/2025

I think my data-binding library for creating Excel spreadsheets is almost ready for a 1.0 github.com/SimonCropp/E... Already using it in anger at work. Spreadsheet code that would have taken a few hours to build now takes a few minutes.

github.com

GitHub - SimonCropp/Excelsior: Excelsior is a Excel spreadsheet generation library with a distinctive data-driven approach.

Excelsior is a Excel spreadsheet generation library with a distinctive data-driven approach. - SimonCropp/Excelsior

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Fati Iseni @fiseni.com · 11/10/2025

The diff usually comes from the compiler version. I mean, nothing wrong to always target the new tfms or at least recompile the libs. But, I think we overhype this mass NuGet update each year :) The only true valid reason to update tfms is if we utilize new APIs in BCL.

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Fati Iseni @fiseni.com · 11/10/2025

That's what I expected, almost identical. If your lib doesn't have dependencies, the effect of targeting the new tfm is negligible (usually none).

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Fati Iseni @fiseni.com · 11/10/2025

What are the reaults if your lib doesn't target net10 explicitly, but the consumer is using net10 runtime?

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Fati Iseni @fiseni.com · 05/10/2025

Published v0.4.0 There are breaking changes. The base infrastructure is updated, and the workflow is streamlined. I don't expect some drastic changes anymore. I think this one will be a good candidate for a stable release. #dotnet #csharp github.com/fiseni/NuSeal

github.com

GitHub - fiseni/NuSeal: A .NET library that helps you protect your NuGet packages with commercial licenses.

A .NET library that helps you protect your NuGet packages with commercial licenses. - fiseni/NuSeal

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Fati Iseni @fiseni.com · 28/09/2025

In my experience, it produces very inefficient code. Also, no new approaches, no new ideas. Overall, it slows me down. I'm sure in other areas perhaps is helpful.

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Fati Iseni @fiseni.com · 26/09/2025

To be honest, this is more obvious to me. It's easy to miss, but not "strange". The other case was more obscure. The "dead code" contributing to allocations. Much easier to remain unnoticed.

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Fati Iseni @fiseni.com · 26/09/2025

Just a reminder. Now, I'm seeing this issue everywhere :)

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Fati Iseni @fiseni.com · 24/09/2025

Ok I see you started working on deterministic packaging. You're like a perpetual machine 😅

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Fati Iseni @fiseni.com · 23/09/2025

For #msbuild folks. Is there a way to use arbitrary task name in UsingTask, and specify FQDN of implementation by other means? Ideally, I wouldn't want to use RoslynCodeTaskFactory and load/instantiate the impl manually. That approach seems flaky. #dotnet #csharp

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Fati Iseni @fiseni.com · 23/09/2025

Ideally, I'd like to create the snapshots with MS Excel. But I have to figure out reliable deterministic outputs. Btw, what's your thought on this? I'd love ur feedback here, I'm still refining the idea and open to suggestions. github.com/fiseni/NuSeal

github.com

GitHub - fiseni/NuSeal: A .NET library that helps you protect your NuGet packages with commercial licenses.

A .NET library that helps you protect your NuGet packages with commercial licenses. - fiseni/NuSeal

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Fati Iseni @fiseni.com · 23/09/2025

Not yet. I plan to be dual licensed from start. So, I don't think I'll publish anything until I fix all the supporting infrastructure.

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Fati Iseni @fiseni.com · 23/09/2025

The SpreadCheetah is limited in functionality (also you can't open or append existing files). ClosedXML covers more stuff. PS. Not announced yet, but for the last 4-5 months I'm working on a new excel lib. I intend to fully implement OpenXML spec. I assume it will take me one more year.

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Fati Iseni @fiseni.com · 19/09/2025

How comitted are you to ClosedXML? It's a full featured library but not very perf oriented. I mean it's understandable, it exists for a long time, before all the perf focus in .NET

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Fati Iseni @fiseni.com · 10/09/2025

It's a compile time action, so there is no runtime overhead at all. The perf implications are based on whatever is generated. Anyhow, I do agree with you. It hurts the "discoverability", the flow might get altered and so on.

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Fati Iseni @fiseni.com · 10/09/2025

I can't say I'm some big proponent of it. But, I observe conflicting statements in the industry. They prefer declarative code instead of imperative. In the same time hate annotations/attributes. You can't be more declarative than having annotations. Choose your poison.

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Fati Iseni @fiseni.com · 10/09/2025

There is a difference though.. these are not about reflection, neither aspect oriented through IL weaving.. These just produce source code, which is debuggable like anything else. It's magic, but not the burried one, hidden under carpet.

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Fati Iseni @fiseni.com · 09/09/2025

The library is taking shape. Released v0.3 Now there is support for validation mode (error/warning), scope (direct/transitive), and other improvements. Check it out. I'm keen to hear from library authors and their requirements. #dotnet #csharp

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Fati Iseni @fiseni.com · 07/09/2025

Ok now it makes sense. It seems System.Text.Json is included in the MSBuild runtime that VS uses. Example location c:\Program Files\Microsoft Visual Studio\{Version}\{Edition}\MSBuild\Current\Bin. It contains also System.Buffers, System.Memory, etc.

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Fati Iseni @fiseni.com · 03/09/2025

📦 Announcing NuSeal A library to protect your NuGet packages with custom licensing! NuSeal provides the infrastructure for creating and validating licenses. It validates the licenses during build time. #dotnet #csharp github.com/fiseni/NuSeal

github.com

GitHub - fiseni/NuSeal: A .NET library that helps you protect your NuGet packages with commercial licenses.

A .NET library that helps you protect your NuGet packages with commercial licenses. - fiseni/NuSeal

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