Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- Mobile development4 min
How Push Notifications Work on iOS and Android
Your server never sends a push straight to the phone: it hands the message and a device token to the platform service — Apple's APNs or Google's Firebase Cloud Messaging — which delivers it to the device. Showing a notification requires the user's permission.
Basics - Marketing & analytics4 min
How to Set Up Events and Key Events (Conversions) in GA4
In GA4 every action is an event with parameters; use recommended names like generate_lead, register the parameters you need as custom dimensions, mark important events as key events and verify everything in DebugView before publishing.
Practice - Design & UX4 min
Figma for Beginners: Interface and First Layout
Figma is a browser-based interface editor where everything is built from frames, shapes and text, and once you know these plus layers, constraints and the Share button, you can build your first mobile screen in an evening.
Basics - Telegram & messengers4 min
Bot API vs MTProto: Telethon, Pyrogram and Userbot Risks
For business bots the Bot API is almost always enough; a local Bot API server or MTProto as a bot covers large files, while userbots on a personal account are rarely justified and risk bans and Telegram ToS violations.
Advanced - E-commerce & CRM4 min
ERP Implementation Roadmap: Stages, Risks and Success Factors
An ERP project succeeds when it starts with a process audit, chooses the system against documented requirements, migrates cleaned data, proves itself in a pilot and goes live with a rollback plan and committed support.
Advanced - Security4 min
How to Launch a Bug Bounty or Vulnerability Disclosure Program
Start with a vulnerability disclosure program: a security.txt file, a clear policy with scope and safe harbor, and a triage process; add paid bug bounty rewards only once your team can fix reported issues quickly.
Advanced - Databases & data4 min
MongoDB Aggregation Pipeline: $match, $group, $lookup Explained
An aggregation pipeline is a chain of stages where each one processes the output of the previous; filter with $match as early as possible, aggregate with $group, and run $lookup only on a small result set.
Practice - Hosting & cloud4 min
How to Get a Free SSL Certificate with Let's Encrypt
Click the Let's Encrypt button in your hosting panel or run certbot on your server, then confirm auto-renewal is enabled, run certbot renew --dry-run and add external expiry monitoring.
Practice - IT careers4 min
How to Become a Programmer from Scratch: A Step-by-Step Plan
Pick one direction, learn the basics of one language and core tools, build 2-3 finished projects with code on GitHub, and start applying for junior roles before you feel you know everything.
Basics - Tools & no-code4 min
QUERY Function in Google Sheets: SQL-Like Data Analysis
QUERY runs a SQL-like query against a range, filtering, grouping, sorting and renaming columns in one formula; combined with IMPORTRANGE it builds reports that update as the source spreadsheet changes.
Advanced - IT by industry4 min
Digital Product Marking in Uzbekistan (Asl Belgisi): What to Do
Every unit of a marked product gets a unique DataMatrix code from the Asl Belgisi system; businesses order codes, apply them, report them into circulation and pass them along the chain to the checkout, where the sale takes the code out of circulation.
Practice - Networks & office IT4 min
IP Cameras vs Analog CCTV: Differences, Pros and Cons
IP cameras deliver more detailed images, run power and data over one network cable via PoE and support analytics, while analog systems are simpler and can be cheaper when upgrading existing coaxial wiring.
Basics - IT for business4 min
How to Reduce MVP Development Cost Without Losing Quality
Cut scope, not quality: one platform or the web, ready services instead of custom modules, manual processing instead of an admin panel, and a ready UI kit; leave security, testing and analytics alone.
Practice - Web development4 min
ES Modules vs CommonJS: import vs require in JavaScript
CommonJS (require) is the older synchronous module system of Node.js, ES Modules (import) is the official language standard; Node.js picks the system by file extension and the type field in package.json.
Basics - SEO4 min
How to Show Products in Google Shopping Free Listings
To show products in Google Shopping for free, register your store in Google Merchant Center, verify the website, send product data via a feed or structured data and fix every disapproval — prices and availability in the data must match the site.
Practice - DevOps3 min
What Are Feature Flags and How They Make Releases Safer
A feature flag is a switch in your code that turns a feature on or off without a new deploy. It lets you ship code early, open a feature to some users first and turn it off instantly if something breaks.
Basics - AI & automation3 min
Chain-of-Thought Prompting: Getting LLMs to Reason Step by Step
Chain-of-thought asks the model to reason step by step before answering, which helps with calculations, logic and multi-condition tasks. In production you separate the reasoning with tags or JSON fields and show users only the final answer.
Practice - Programming4 min
Git Hooks: Automating Checks with pre-commit and Husky
Git hooks are scripts Git runs before a commit or push; the pre-commit framework (Python) and Husky with lint-staged (JS) share them across the team and check only the changed files.
Advanced - Mobile development4 min
How to Get More App Ratings and Reviews Without Breaking Store Rules
Ask for ratings only through native APIs (StoreKit on iOS, In-App Review on Android) right after a user succeeds at something, reply to reviews and fix what people complain about. Rewarding ratings or filtering out unhappy users is banned by both stores.
Practice - Marketing & analytics4 min
How to Build a Funnel Exploration Report in GA4
In GA4 you build a funnel in Explore with the Funnel exploration template: define each step as an event with conditions, choose an open or closed funnel, add a device or channel breakdown and look for the step with the biggest drop-off.
Practice - Design & UX4 min
How to Make an Interactive Prototype in Figma
In Figma's Prototype tab you connect frames with interactions (trigger plus action plus animation), set a flow starting point, add overlays and scroll behavior, then share the prototype link with testers.
Practice - Telegram & messengers5 min
How to Write Automated Tests for a Telegram Bot
Test handlers and FSM steps in isolation with mocked Bot API calls and fake updates, add a few smoke tests against the Telegram test environment, and run the whole suite in CI so a failing test blocks the deploy.
Advanced - E-commerce & CRM4 min
FBO vs FBS on Marketplaces: Which Fulfillment Model to Choose
With FBO you ship stock to the marketplace warehouse and it handles storage and delivery, which is faster for buyers but freezes your stock; with FBS goods stay in your warehouse and you pack each order, which gives control but adds daily work.
Basics - Security4 min
How to Store API Keys and Secrets: Beyond .env Files
Secrets never belong in code or the repository: the app reads them from environment variables, while the values live in a CI/CD or cloud secret store, separate per environment, with minimal permissions and regular rotation.
Practice
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