Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- Mobile development4 min
iOS vs Android Development: Key Differences for Teams and Owners
iOS means Swift, Xcode, a small set of devices and strict Apple review; Android means Kotlin, Android Studio and a huge variety of devices. In Uzbekistan and most of the CIS, Android holds the bulk of the audience, so it is often the sensible first platform unless your segment leans towards iPhone.
Basics - Marketing & analytics4 min
Google Ads Performance Max: How It Works and When to Use It
Performance Max is a single campaign that distributes ads across all Google channels towards your conversion goal. It performs when you have accurate conversion tracking, enough budget, strong assets and a clean feed, but it gives less control and transparency than Search campaigns.
Practice - Design & UX4 min
How to Create a Wireframe Step by Step
Start from the page goal and a list of real content, sketch rough grayscale layouts that order that content by priority, annotate how things behave, and review with the team before any visual design.
Practice - Telegram & messengers4 min
How to Launch an Online Store Inside a Telegram Bot
A bot store is a catalog of categories and product cards, a cart kept in a database, a short checkout, payment via Telegram Payments or a payment provider link, and status notifications; once you need search and filters, move the storefront into a Mini App.
Practice - E-commerce & CRM4 min
How to Launch an Online Store Step by Step
Launching takes six stages: validate the niche and build the catalog, pick a platform, connect payments, set up delivery, cover the legal basics and run a full test order; skipping any stage shows up later with real customers.
Practice - Security4 min
How to Store Passwords Securely: bcrypt, scrypt and Argon2
Store passwords only as a slow, salted hash made with Argon2id, scrypt or bcrypt, never as plain MD5 or SHA. Move legacy hashes to the new algorithm gradually, each time a user logs in.
Practice - Databases & data4 min
PostgreSQL Index Types: B-tree, GIN, GiST, BRIN and When to Use Them
B-tree covers equality, ranges and sorting; GIN covers “contains” searches in jsonb, arrays and full text; GiST covers overlaps, geometry and nearest-neighbour; BRIN covers huge append-only tables ordered by time.
Advanced - Hosting & cloud4 min
How to Connect a Domain to Your Hosting or Server
Either switch the domain's nameservers to your host and manage DNS there, or keep DNS where it is and add an A record with the server IP plus a CNAME for www, then verify with dig.
Practice - IT careers4 min
How to Understand an Unfamiliar Codebase Quickly
Do not read the code file by file: run the project, trace one user flow from the UI to the database with a debugger, back it up with tests and git history, and close the gaps with targeted questions.
Practice - Tools & no-code4 min
JQL Guide: Advanced Search and Filters in Jira
JQL is Jira's query language: you combine fields, operators and functions into conditions like assignee = currentUser() AND resolution = Unresolved, save them as filters and reuse them in dashboards and email subscriptions.
Advanced - IT by industry4 min
How Courier Dispatch and Routing Work in Food Delivery
Dispatch is a loop that every few seconds collects orders being prepared and available couriers, scores the options by delivery and waiting time and assigns the best ones; ETA and tracking rely on a stream of GPS coordinates from couriers.
Advanced - Networks & office IT4 min
QoS in an Office Network: Prioritizing Calls, Video and Critical Apps
QoS does not add bandwidth — it decides which packets go first when a link is congested, so it works where you control the bottleneck: your upload to the ISP, the LAN and Wi-Fi.
Advanced - IT for business4 min
How to Rescue a Failing IT Project
Stop and find the root cause, cut the scope down to what is truly needed for launch, renegotiate timelines honestly and rebuild trust through short cycles with visible results.
Advanced - Web development3 min
How Websites Work: Client, Server, HTTP and the Browser
A website is a conversation: the browser (client) finds the server through DNS, sends an HTTP request, and the server returns HTML, CSS, JavaScript and data that the browser turns into a page.
Basics - SEO3 min
How to Improve INP: Making Your Site Respond Faster
INP shows how quickly a page visually responds to clicks and typing. Improve it by breaking up long tasks, trimming third-party scripts and reducing the rendering work after each action.
Practice - DevOps4 min
Graceful Shutdown in Containers: SIGTERM, Draining and Timeouts
On SIGTERM the app must stop accepting new work, finish in-flight requests and exit before the grace period ends; make sure the signal reaches your process as PID 1 and add a short preStop delay in Kubernetes.
Advanced - AI & automation3 min
Face Recognition for Business: Use Cases, Accuracy and Law
Face recognition makes sense where people knowingly opt in, such as office entry or shift tracking; before launch, choose an error threshold, test the system on your own staff and collect consent for biometric data.
Practice - Programming5 min
Greedy Algorithms: How They Work and When They Fail
A greedy algorithm builds a solution by taking the locally best option at every step and never reconsidering it; it is correct only when the problem has the greedy choice property and optimal substructure, otherwise you need dynamic programming.
Basics - Mobile development4 min
Maps in Mobile Apps: Google Maps SDK vs Yandex MapKit
For apps used in Uzbekistan and the CIS, Yandex MapKit often has more detailed addresses and places, while Google Maps SDK suits international products and the Google ecosystem. Decide after testing real user addresses and factoring in geocoding and routing costs.
Practice - Marketing & analytics4 min
How to Improve Quality Score in Google Ads
Quality Score is a 1-10 rating built from expected CTR, ad relevance and landing page experience. Tight keyword groups, ads written for the search and a fast page that answers it raise all three and usually lower your cost per click.
Practice - Design & UX4 min
How to Choose and Pair Fonts for a Website
Pick a highly readable body font first, then a heading font that contrasts with it in one clear way (structure, weight or width) and fits the brand mood; check the license, language support and loading cost before you commit.
Practice - Telegram & messengers4 min
How to Accept Payments in a Telegram Bot via Payme and Click
Either connect Payme or Click as a payment provider in BotFather and send invoices right in the chat, or send a payment link and confirm the order from the gateway callback; in both cases an order counts as paid only after server-side confirmation.
Practice - E-commerce & CRM4 min
What Are Chargebacks and How to Prevent Them
A chargeback is a forced payment reversal initiated by the buyer's bank; most disputes are prevented with a recognisable statement descriptor, delivery proof, fraud checks and fast, helpful support.
Practice - Security5 min
PCI DSS: What Businesses Accepting Card Payments Must Know
PCI DSS is the card industry security standard for anyone handling card data; the easiest way to comply is to never let card numbers touch your servers by using a hosted payment page or tokenization.
Practice
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