Dual-Booting Windows and Ubuntu: A Step-by-Step UEFI Installation Guide

Collecting a reference library of genuine document layouts — scrape, partner, or buy?

At Landvex we need a reference holding of what genuine document families look like: bank statements, employment certificates, invoices, and some ID/travel documents used in Europe. Not customer files.

37m ago ·dev.to

S — Single Responsibility Principle — SOLID Principles with Examples

Lesson 1 of 8 in the free SOLID Principles with Examples course on DevLadder. "A class should have one, and only one, reason to change." — Robert C.

• Single Responsibility Principle (SRP) states a class should have one reason to change
• Changing invoice formatting, data storage, or email delivery requires class modifications

37m ago ·dev.to

Class, object, fields, properties and methods — OOP Concepts in C#

Lesson 1 of 15 in the free OOP Concepts in C# course on DevLadder. A class is a blueprint; an object is an instance created from it at runtime.

• A class is a blueprint for objects in C#, likened to a template.
• Objects are instances of classes generated at runtime with their own state.
• Encapsulation safeguards class data by making fields private and providing public access methods.

39m ago ·dev.to

Singleton — Design Patterns (GoF + Enterprise) in C#

Lesson 1 of 18 in the free Design Patterns (GoF + Enterprise) in C# course on DevLadder. Ensure a class has one instance with a global access point.

• Singleton ensures single instance with global access in C#
• Implement sealed class, private constructor, Lazy<T> for thread safety
• ASP.NET Core uses services.AddSingleton T for Singleton management

36m ago ·dev.to

When do you lock the evaluation set?

At Landvex we're about to scale collection and annotation across several document families, mixed image and file inputs. The obvious failure mode is multiplying training material first, then…

• Lock test set before expanding annotation efforts
• Lock evaluation aspects like label schema and annotator instructions
• Maintain strict boundaries to prevent test leakage

36m ago ·dev.to

Core objects and the connected model — ADO.NET

Lesson 1 of 9 in the free ADO.NET — Connected & Disconnected Data Access course on DevLadder. Object Role SqlConnection Connection to the DB (pooled) SqlCommand SQL statement or stored procedure…

35m ago ·dev.to