Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- Databases & data4 min
Data Analytics Basics: Descriptive, Diagnostic, Predictive
Analytics answers four questions in order: what happened (descriptive), why it happened (diagnostic), what will happen (predictive) and what to do about it (prescriptive). Every useful analysis starts with a clear business question and a precisely defined metric, not with the data.
Basics - Hosting & cloud4 min
What Is Object Storage and How It Differs from a File System
Object storage keeps files as separate objects with a key and metadata inside buckets and serves them over an HTTP API, usually S3-compatible; it scales almost without limit and is independent of any server, so user uploads, media and backups belong there rather than on the disk.
Basics - IT careers4 min
Salary Negotiation in IT: How to Ask for More
Before the conversation, gather market data and set your minimum and target, name a range backed by the market and your value, answer counteroffers calmly with arguments, and if salary hits a ceiling, negotiate other terms.
Practice - Tools & no-code4 min
Slack Workflow Builder and Integrations: Automate Routine
Workflow Builder turns repeated Slack routines into a trigger plus a few steps — a form, a message, a row in a sheet — while apps for Jira, Google Drive and GitHub bring events in; the rule is one dedicated channel and strict filters for every integration.
Practice - IT by industry4 min
How NGOs Accept Online Donations: Platforms and Payments
NGOs do best with their own donation page connected to local payment systems and a monthly giving option, while trust rests on automatic donor receipts and regular public reports on spending.
Practice - Networks & office IT4 min
What Is IP Telephony (VoIP) and How It Works for Business
IP telephony (VoIP) carries voice over the internet or the office network instead of copper phone lines, so calls can be answered on any device, routed flexibly between staff and connected to your CRM.
Basics - IT for business4 min
Which Project Reports to Request from Your Contractor
Ask for a regular progress report with a demo, a burndown chart, budget burn against plan, a risk register and time logs — and look at trends and mismatches between them rather than at single numbers.
Practice - Web development3 min
How to Structure a React Project: Folders and Conventions
Grouping by file type is fine for small projects, but a growing app is better split by feature: everything for one feature lives in one folder, and shared code goes to shared.
Practice - SEO4 min
What Are Orphan Pages and How to Find Them
An orphan page is a page that no internal link on your site points to. Search engines find it rarely and treat it as unimportant; you find orphans by comparing URL lists from the sitemap, a crawler and analytics.
Basics - DevOps4 min
How to Configure Nginx as a Load Balancer
List your app servers in an upstream block, pick a method (round-robin, least_conn, ip_hash or hash), set max_fails and fail_timeout, and point proxy_pass at it — Nginx then spreads requests and skips failed servers.
Practice - AI & automation4 min
LLM Knowledge Cutoff: Why Models Miss Recent Facts
A model only knows the world up to the date its training data ends and cannot tell that its knowledge is stale; to get current answers, pass fresh data at request time — through search, RAG or directly in the prompt.
Basics - Programming3 min
Python Virtual Environments: venv, pip and Poetry Guide
A virtual environment is an isolated folder with Python and the packages of one project; create it with venv or Poetry and pin dependency versions in a file.
Practice - Mobile development4 min
Over-the-Air Updates: Shipping Fixes Without a Store Release
OTA updates deliver new JavaScript or Dart code without store review, but they cannot change the native layer. Expo Updates is the main option for React Native and Shorebird for Flutter; you also need version compatibility, staged rollouts, rollback and a forced update screen.
Advanced - Marketing & analytics4 min
How to Create a Social Media Content Plan for a Business
Build the content plan from your goals and your audience's questions: define 3-5 content pillars, spread them across formats and platforms at a pace your team can keep, track everything in one table and adjust monthly based on analytics.
Practice - Design & UX4 min
UX Audit Checklist: How to Review a Website or App
A UX audit means walking through key user scenarios with a checklist for navigation, content, forms, accessibility, mobile and trust; log each issue with a screenshot, severity and recommendation, and fix whatever blocks the target action first.
Practice - Telegram & messengers4 min
How to Integrate TON Connect into a Telegram Mini App
Connect wallets with @tonconnect/ui and a manifest, prove address ownership with ton_proof verified on the server, send transactions via sendTransaction and mark orders paid only after checking the blockchain — and sort out Telegram rules and local regulation before launch.
Advanced - E-commerce & CRM3 min
Product Page Checklist: What a High-Converting Product Card Needs
A product page sells when it answers four questions in seconds: what it is, what it really costs, when it arrives and whether the store can be trusted, with the buy button always within reach on mobile.
Practice - Security4 min
Uzbekistan Personal Data Law: What Websites and Apps Must Do
If your website or app collects data of Uzbek citizens, you must obtain their consent, store that data on servers in Uzbekistan, register the database in the state register, and protect it with organizational and technical measures.
Basics - Databases & data4 min
UUID vs Auto-Increment ID: Choosing a Primary Key
For a typical web or mobile backend a sensible default is UUIDv7 in a native uuid column: it can be generated anywhere, does not reveal volumes and inserts almost like auto-increment; bigint identity is great for internal tables in a single database.
Practice - Hosting & cloud4 min
What Is Serverless Computing: Pros, Cons and Use Cases
Serverless is a model where you upload function code and the cloud runs it on events, scales it and bills you for actual invocations; it suits uneven traffic and background jobs, but not long-running processes or persistent connections.
Basics - IT careers4 min
How to Switch Specialization in IT Without Starting Over
The easiest way to switch specialization without a grade drop is to move into an adjacent role, ideally inside your current company: you carry over product, process and engineering knowledge, and close the missing skills with real tasks at the boundary of both roles before the formal move.
Advanced - Tools & no-code3 min
SUMIFS and COUNTIFS: Summing and Counting by Conditions
SUMIFS adds up values from rows where every condition is true and COUNTIFS counts those rows; conditions come in range–criterion pairs and can use dates, comparison operators and the * and ? wildcards.
Practice - IT by industry3 min
CRM for Nonprofits: Managing Donors and Volunteers
A nonprofit CRM is a single database of donors, volunteers and grants: it keeps every gift's history, shows campaign results, helps schedule volunteer shifts and builds funder reports without merging spreadsheets by hand.
Basics - Networks & office IT4 min
Wi-Fi 6 vs Wi-Fi 6E vs Wi-Fi 7: What Changes for an Office
Wi-Fi 6 is enough for most offices; 6E adds the clean 6 GHz band, and Wi-Fi 7 adds wider channels and multi-link connections, which pay off only in busy spaces where most laptops and phones already support them.
Basics
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