From the team

Open Source .NET Projects β€” Libraries, Bots & AI Tools

Libraries we built because the existing options weren't good enough. All open source, all actively maintained.

project12 min read
Laraue Boards β€” an open source task tracker with Telegram integration and a lightweight Jira alternative
An open source task tracker that turns Telegram messages into cards on a kanban board. Send a message to the bot, get a card you can work with in the web app or the Mini App. Free, and the code is open.
project managementtelegramjira alternativetask trackingkanbanopen sourcesaved messages
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project22 min read
EF Core Triggers in C# β€” How to Write Database Triggers With Fluent Syntax and Expression Trees
A deep dive into Laraue.EfCoreTriggers β€” how to define database triggers in C# using fluent syntax, how the library translates expression trees to SQL, and how to extend it for new database providers.
EF Core triggers C#database triggers Entity Frameworkexpression tree to SQL C#EF Core extension libraryfluent API EF CoreIModelDiffer EF Coreexpression visitor C#
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project16 min read
Serve Markdown Files as an API in .NET β€” Laraue.CmsBackend
A lightweight .NET 10 library that turns Markdown files with frontmatter into a filterable, sortable REST API. Strongly typed content schemas, no database, no CMS overhead. Open source, MIT license.
.NET CMSmarkdown API backendheadless CMS .NETC# markdown librarystatic site backendfrontmatter APINuGet CMS package
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project9 min read
Learn English Vocabulary Free With a Telegram Quiz Bot
Build real English vocabulary with a free Telegram quiz bot. No install, no signup. CEFR levels A1–C1, 7 language pairs, daily streaks. Start in 30 seconds.
language learningvocabulary botTelegram bot learn Englishfree language appCEFR vocabularylearn English freevocabulary quiz
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project9 min read
C# Web Scraping Library β€” Strongly Typed Crawling for .NET
Laraue.Crawling is a strongly typed C# web scraping library for .NET that supports static HTML, JavaScript-rendered pages, and XML. Define maintainable crawling schemas in code β€” no spaghetti selectors.
C#.NETweb scrapingcrawlerAngleSharpPuppeteerSharpHTML parsing
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project18 min read
How to Build a Query Language Interpreter in C# β€” A Worked Example
A step-by-step walkthrough of building a query language interpreter in C# β€” lexer, parser, AST, and pipeline executor β€” using PdfQL as a real worked example. Open source.
build interpreter C#query language C#lexer parser AST C#transpiler C#domain specific language .NETMongoDB pipeline C#PDF data extraction C#
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project6 min read
Laraue.Telegram.NET β€” Write Telegram Bots Like ASP.NET Controllers in C#
Stop writing if-else chains for Telegram bot routing. Laraue.Telegram.NET brings ASP.NET-style controllers, middleware, authentication, and localization to .NET 9 Telegram bot development.
Telegram.NETC#Telegram BotASP.NETMVCMiddlewareAuthenticationLocalizationBot DevelopmentWebhookLong Polling
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project8 min read
AI Apartment Search for Saint Petersburg β€” Ranked by Photo Quality
Stop scrolling bad listings. This free tool crawls Saint Petersburg real estate and ranks every apartment by renovation quality using AI photo analysis. Filter by district, price, rooms, and AI score. Get Telegram notifications for new matches.
Saint Petersburg apartment searchAI real estate rankingapartments Saint Petersburgrent buy apartment SPbCian aggregator alternativerenovation quality AITelegram apartment notifications
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