Code Beyond Limits is a software development blog about engineering, problem-solving, and pushing past the usual limits of code.https://codebeyondlimits.com/https://codebeyondlimits.com/workshops/mug-9-memory-for-ai-applications/https://codebeyondlimits.com/workshops/mug-9-memory-for-ai-applications/A MongoDB User Group Belgrade session at Belgrade AI Week on memory for AI applications — conversational memory, semantic caching, checkpointing, and long-term memory retrieval with MongoDB Vector Search and LangGraph.Tue, 26 May 2026 00:00:00 GMThttps://codebeyondlimits.com/workshops/mug-8-building-ai-agents-students/https://codebeyondlimits.com/workshops/mug-8-building-ai-agents-students/A student-focused edition of the MongoDB User Group Belgrade AI Agents workshop — building an AI agent with reasoning, tools, and memory using MongoDB, an LLM, and LangGraph. Conducted in Serbian.Mon, 20 Apr 2026 00:00:00 GMThttps://codebeyondlimits.com/workshops/mug-7-building-ai-agents/https://codebeyondlimits.com/workshops/mug-7-building-ai-agents/A hands-on MongoDB User Group Belgrade Skill Badge workshop on building AI agents — reasoning, tools, and memory — culminating in a documentation agent powered by MongoDB, an LLM, and LangGraph.Thu, 26 Mar 2026 00:00:00 GMThttps://codebeyondlimits.com/workshops/mug-6-atlas-search-fundamentals/https://codebeyondlimits.com/workshops/mug-6-atlas-search-fundamentals/A developer-focused MongoDB User Group Belgrade Skill Badge workshop on Atlas Search fundamentals — building search indexes, $search and $searchMeta queries, autocomplete, fuzzy search, facets, and custom scoring.Thu, 18 Dec 2025 00:00:00 GMThttps://codebeyondlimits.com/workshops/mug-5-schema-design-patterns/https://codebeyondlimits.com/workshops/mug-5-schema-design-patterns/A developer-focused MongoDB User Group Belgrade Skill Badge workshop on schema design — the Inheritance, Computed, and Extended Reference patterns, avoiding anti-patterns like unbounded arrays and bloated documents, and modeling for performance.Thu, 27 Nov 2025 00:00:00 GMThttps://codebeyondlimits.com/talks/tech-safar-developer-journey/https://codebeyondlimits.com/talks/tech-safar-developer-journey/A conversation on the Tech Safar podcast about my journey as a developer — freelancing, becoming a top 1% Stack Overflow contributor, working across the MEAN stack, and growing into a MongoDB Champion who leads communities and conferences.Wed, 01 Oct 2025 00:00:00 GMThttps://codebeyondlimits.com/workshops/mug-4-building-rag-applications/https://codebeyondlimits.com/workshops/mug-4-building-rag-applications/A hands-on MongoDB User Group Belgrade Skill Badge workshop on building Retrieval Augmented Generation (RAG) applications with MongoDB Atlas — chunking, embedding, semantic search, and an end-to-end RAG chatbot with open-source LLMs.Wed, 04 Jun 2025 00:00:00 GMThttps://codebeyondlimits.com/workshops/mug-3-django-mongodb-voyage-ai/https://codebeyondlimits.com/workshops/mug-3-django-mongodb-voyage-ai/The third MongoDB User Group Belgrade meetup — building AI-powered applications by combining Django with MongoDB, the official Django MongoDB Backend, and Voyage AI embeddings for vector search.Fri, 21 Mar 2025 00:00:00 GMThttps://codebeyondlimits.com/talks/semantic-image-search-mongodb/https://codebeyondlimits.com/talks/semantic-image-search-mongodb/A MongoDB podcast on implementing semantic image search — using vector embeddings and MongoDB Atlas Vector Search to find visually similar images and flag potential trademark, copyright, and patent infringement in e-commerce.Tue, 28 Jan 2025 00:00:00 GMThttps://codebeyondlimits.com/workshops/mug-2-semantic-search/https://codebeyondlimits.com/workshops/mug-2-semantic-search/The second MongoDB User Group Belgrade meetup — an introduction to semantic search with MongoDB Atlas Vector Search, embedding models, and a live application demo.Thu, 24 Oct 2024 00:00:00 GMThttps://codebeyondlimits.com/talks/mongodb-vs-sql/https://codebeyondlimits.com/talks/mongodb-vs-sql/My MongoDB.local London 2024 talk comparing MongoDB's document model with traditional SQL databases — where each shines and how to reason about the trade-offs.Wed, 02 Oct 2024 00:00:00 GMThttps://codebeyondlimits.com/workshops/mug-1-introduction-to-mongodb/https://codebeyondlimits.com/workshops/mug-1-introduction-to-mongodb/The first MongoDB User Group meetup in Belgrade — an introduction to MongoDB, the document model, and MongoDB Atlas.Thu, 27 Jun 2024 00:00:00 GMThttps://codebeyondlimits.com/blog/iot-mongodb-time-series-analysis/https://codebeyondlimits.com/blog/iot-mongodb-time-series-analysis/A practical case study using MongoDB time series collections to store and analyze 2M+ household power-consumption data points — schema modeling with Mongoose, bulk data import, and visualization with Atlas Charts.Mon, 01 Jan 2024 00:00:00 GMThttps://codebeyondlimits.com/blog/entangled-data-remodeling/https://codebeyondlimits.com/blog/entangled-data-remodeling/A real-world MongoDB case study from the Entangled consciousness-experiment platform — how re-modeling from hourly to daily documents cut storage by 10x, and why the monthly schema surprisingly grew.Thu, 14 Dec 2023 00:00:00 GMThttps://codebeyondlimits.com/blog/angular-theme-switcher/https://codebeyondlimits.com/blog/angular-theme-switcher/Build a dynamic light/dark theme switcher in Angular using CSS variables and a data-theme attribute — clean, maintainable theming with a toggle users can flip.Wed, 26 Apr 2023 00:00:00 GMThttps://codebeyondlimits.com/blog/backup-restore-migrate-mongodb/https://codebeyondlimits.com/blog/backup-restore-migrate-mongodb/A step-by-step guide to backing up, restoring, and migrating MongoDB databases with the mongodump and mongorestore tools — including per-database, per-collection, and index options.Tue, 18 Apr 2023 00:00:00 GMThttps://codebeyondlimits.com/blog/automating-sitemap-generation-with-nodejs/https://codebeyondlimits.com/blog/automating-sitemap-generation-with-nodejs/Build a fully-automated Node.js server that generates SEO sitemaps and a sitemap index — handling the 50k-URL limit, multi-language pages, and scheduled regeneration with cron.Wed, 15 Mar 2023 00:00:00 GMThttps://codebeyondlimits.com/blog/service-workers-in-angular/https://codebeyondlimits.com/blog/service-workers-in-angular/A complete guide to setting up a Service Worker in Angular — turn your app into an offline-capable PWA, configure caching and update strategies, and troubleshoot the common hash-mismatch pitfalls.Wed, 01 Feb 2023 00:00:00 GMThttps://codebeyondlimits.com/blog/pagination-in-mongodb/https://codebeyondlimits.com/blog/pagination-in-mongodb/How to implement pagination in MongoDB correctly with the Aggregation Framework and $facet — one efficient query that avoids the data-inconsistency and performance pitfalls of the common two-call approach.Wed, 11 Jan 2023 00:00:00 GMThttps://codebeyondlimits.com/blog/nodejs-express-setup-made-easy/https://codebeyondlimits.com/blog/nodejs-express-setup-made-easy/A reusable Express.js server setup with best-practice middleware — error handling, gzip compression, CORS, static files, logging, and ESLint + Prettier. Fork it and start any project in seconds.Mon, 19 Dec 2022 00:00:00 GMT