Machine Learning Intermediate
Unsloth + Training Hub: Lightning-Fast LoRA in Production
Fine-tune 7B LLMs on one 24GB GPU with 70% less VRAM
7 min read·Kodetra Technologies
YesterdayAI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
All Categories
All Levels
Machine Learning 
Tutorials Beginner
Mastra createAgent: TypeScript AI Agents in 5 Minutes
Build a typed Mastra agent with tools, memory, and Zod schemas in plain TypeScript.
4 min read·Kodetra Technologies
3d ago
Tutorials Intermediate
Build a ReAct Agent from Scratch in Python (No Framework)
Reason + Act loop, tool routing, retries — implement a real agent in 200 lines of Python.
9 min read·Kodetra Technologies
5d ago
Machine Learning Intermediate
GRPO Fine-Tuning: Train Reasoning Into Small LLMs
Use GRPO to teach a 0.5B model multi-step math reasoning end to end.
9 min read·Kodetra Technologies
8d ago
Tutorials Intermediate
Claude Agent SDK: Custom Tools with In-Process MCP
Add custom Python tools to Claude agents with one decorator. No server. No HTTP. Just code.
4 min read·Kodetra Technologies
8d ago
Tutorials Beginner
Salesforce Headless 360: Connect AI Agents via MCP
Learn how Salesforce Headless 360 exposes your CRM to AI agents via 60+ MCP tools. No UI needed.
3 min read·Kodetra Technologies
16d ago
Tutorials Beginner
GPT-5.4 Tool Search: Load Only What You Need
Use OpenAI's tool search to dynamically load tools at runtime, cutting token usage by 47% in large tool ecosystems.
4 min read·Kodetra Technologies
24d ago
Tutorials Beginner
Build Your First Local AI Agent with Google Gemma 4 + Ollama
Step-by-step guide to run Google's latest Gemma 4 model locally and build an AI agent with tool-calling and agentic workflows.
4 min read·Kodetra Technologies
24d ago
Tutorials Beginner
How to Use Meta Muse Spark: Free AI That Thinks
Step-by-step tutorial for Meta's new Muse Spark multimodal AI model
6 min read·Kodetra Technologies
27d ago