Your path
28 modules, 62 lessons. Visit them in any order.
How computers work
0/2CPU, memory, storage, operating systems, files and processes.
The four parts of every computerCPU sochta hai, RAM yaad rakhta hai, storage sambhaal ke rakhta hai, GPU dikhata hai.Operating systems, files and processesOS traffic police hai: har app ko baari baari CPU aur memory deta hai.2026 mein log ye use karte hain
htop / Activity Monitor
Live view of every running process, CPU load and RAM use on your own machine.
Jo CPU, memory aur process is module me padha, wahi cheezein yahan real time me chalti dikhti hain.
Ek baar khud ka laptop dekhiye — theory turant real ban jaati hai.
htop official siteTool example last reviewed: September 2026
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Programming basics
0/2Variables, types, conditions, loops, functions, collections, state.
Variables, types and conditionsVariable ek naam wala dabba hai; type batata hai andar kya rakha hai.Loops, functions, collections and stateFunction ek recipe hai, loop use har item par dohrata hai, state abhi ka haal hai.2026 mein log ye use karte hain
Python 3.13 + uv
uv ek tez package aur environment manager hai, jo Python projects seconds me set kar deta hai.
2026 me naye Python projects zyadatar uv se shuru hote hain, purane pip+venv ki jagah.
Language wahi hai, sirf setup ab bahut fast ho gaya hai.
uv documentationTool example last reviewed: September 2026
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The technology map
0/2Languages, libraries, frameworks, runtimes, compilers, packages, IDEs.
Languages, libraries, frameworks and runtimesLanguage bhasha hai, library ek tool hai, framework poora dhaancha hai.Compilers, packages, IDEs and why many languages existHar language kisi ek kaam ke liye achhi hai — isliye itni saari hain.2026 mein log ye use karte hain
Bun
Ek hi tool me runtime, package manager, bundler aur test runner.
Runtime, package manager, bundler ka farq samajhne ke liye best live example.
Ek tool kai roles nibha sakta hai — labels ko rat't'a mat maariye, kaam dekhiye.
Bun docsTool example last reviewed: September 2026
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How the web works
0/2Browsers, HTML/CSS/JS, URLs, DNS, HTTPS, requests and responses.
URLs, DNS and what a browser really doesDomain naam hai, DNS phonebook hai, browser page ko jodta hai.HTML, CSS, JavaScript and the request/response dealHTML dhaancha, CSS kapde, JavaScript harkat — aur HTTP unhe laata hai.2026 mein log ye use karte hain
Chrome DevTools Network panel
Har request, status code, header aur timing browser me hi dikhata hai.
Request-response cycle ko padhne ke baad usse apni aankhon se dekhne ka sabse seedha tareeka.
F12 dabaiye, Network kholiye — web ka pura conversation saamne hai.
Chrome DevTools: NetworkTool example last reviewed: September 2026
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Frontend
0/2Components, routing, forms, responsive layout, accessibility, local state.
Components, routing and local stateComponent ek lego block hai, route ek page ka pata hai.Forms, responsive layout and accessibilityForm data leta hai, responsive layout har screen par fit hota hai, accessibility sabke liye hai.2026 mein log ye use karte hain
React 19 + Vite 7
Aaj ka standard frontend combo: components React se, dev server aur build Vite se.
Yehi stack is app me bhi chal raha hai, to jo padha wo turant relate hota hai.
Frontend ka matlab hai: components + ek fast build tool.
React docsTool example last reviewed: September 2026
Backend and data
0/3APIs, JSON, databases, SQL, relationships, CRUD, storage, auth.
APIs, JSON and CRUDAPI menu hai, JSON parcel ka format hai, CRUD chaar kaam hain.Databases, SQL, storage and who is allowed inDatabase table hai, SQL sawaal hai, auth pehchaan hai, authorization ijaazat hai.Background jobs: work that should not happen while the user waitsLamba kaam queue me daaliye — user ko intezaar mat karaiye.2026 mein log ye use karte hain
Supabase / Postgres
Managed Postgres database ke saath auth, storage aur APIs ready-made.
Chhoti team bina server maintain kiye poora backend chala leti hai.
Backend ka matlab ab server room nahi, managed service hai.
Supabase docsTool example last reviewed: September 2026
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Mobile apps
0/2Native, cross-platform and WebView; Swift, Kotlin, Flutter, React Native.
Native, cross-platform or WebViewNative sabse tez, cross-platform sabse sasta, WebView sabse jaldi.Shared code, separate builds and store releasesCode ek ho sakta hai, par build aur release dono stores ke alag hote hain.2026 mein log ye use karte hain
Expo (React Native)
Ek codebase se Android aur iOS app, cloud build aur over-the-air updates ke saath.
Solo founders 2026 me mobile app aksar isi se ship karte hain.
Do platforms, ek team — Expo yahi problem solve karta hai.
Expo docsTool example last reviewed: September 2026
Desktop apps
0/2Windows/macOS/Linux, .NET, Electron, Tauri, files, installers, updates.
Desktop apps: native, .NET, Electron and TauriDesktop app user ke computer par chalta hai — files aur permissions ke saath.Installers, permissions and updatesInstall karna aasaan ho, update apne aap aaye, permission sirf zaroori ki maango.2026 mein log ye use karte hain
Tauri 2
Web UI ko chhoti, tez desktop app me pack karta hai (Rust core ke saath).
Electron se kaafi halka, isliye naye desktop tools ismein ban rahe hain.
Website jaisa UI, lekin proper desktop app ki tarah install hota hai.
Tauri docsTool example last reviewed: September 2026
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Games
0/2Engines, game loops, rendering, physics, input and frame rates.
Engines, loops and frame ratesEngine ready-made game machine hai; loop har frame par duniya update karta hai.Rendering, physics and inputRendering dikhata hai, physics takkar sambhalta hai, input player ka haath hai.2026 mein log ye use karte hain
Godot 4
Free, open-source game engine — 2D aur 3D dono ke liye.
Indie aur seekhne wale developers ke liye ab default choice ban chuka hai.
Game banane ke liye bada budget nahi, ek free engine kaafi hai.
Godot docsTool example last reviewed: September 2026
Shipping software
0/3Git, branches, dependencies, builds, hosting, environments, CI/CD.
Git, commits and branchesGit har badlaav ka record rakhta hai — galti hui to peeche jaa sakte hain.Builds, environments, CI/CD and releasesDev jagah experiment ki hai, production asli users ki — dono alag rakhein.Feature flags: ship quietly, turn on slowlyCode bhej dijiye, switch band rakhiye — feature tab kholiye jab tayaar ho.2026 mein log ye use karte hain
GitHub Actions
Har commit par automatically test, build aur deploy chalata hai.
CI/CD ka sabse common ghar — pipeline yahin likhi jaati hai.
Ship karna ek button nahi, ek automatic pipeline hoti hai.
GitHub Actions docsTool example last reviewed: September 2026
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Quality and costs
0/2Testing, debugging, logs, performance, secrets, backups, cloud bills.
Testing, debugging and logsTest pehle pakadta hai, log baad me batata hai kya hua tha.Secrets, backups and what cloud bills are made ofSecret chhupa ke rakho, backup test karo, bill teen cheezon ka hota hai.2026 mein log ye use karte hain
Biome
Ek hi tez tool me linting aur formatting, poore project par.
Quality checks itne fast ho gaye hain ki har save par chal sakte hain.
Code quality manual review nahi, automatic guardrail honi chahiye.
Biome docsTool example last reviewed: September 2026
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Working with AI agents
0/2Requirements, acceptance criteria, small tasks, reviewing changes.
Briefing an AI agent: requirements and acceptance criteriaSaaf requirement do aur bata do 'done' kaisa dikhta hai.Reviewing changes and choosing a stackResult khud check karo aur boring, jaana-pehchaana stack chuno.2026 mein log ye use karte hain
Claude Code / Cursor agents
AI agent jo aapke repo me files padhta, badalta aur commands chalata hai.
2026 me 'AI se code likhwana' ka matlab chat nahi, repo me kaam karta agent hai.
Aap manager ban jaate hain: kaam saaf batayiye, output verify kijiye.
Claude Code docsTool example last reviewed: September 2026
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Security and safety
0/3Passwords, hashing, HTTPS, secrets, permissions, common attacks, backups.
Passwords, logins and who is allowed inPassword kabhi seedha save nahi hota — uska hash banta hai, aur permission alag cheez hai.HTTPS, secrets, attacks and backupsKeys code me nahi, HTTPS zaroori, aur backup tab tak backup nahi jab tak restore test na ho.Secrets, .env files and config you can rotateKeys code me nahi, config me rakhiye — aur badalne layak rakhiye.2026 mein log ye use karte hain
GitHub Dependabot + secret scanning
Purane, risky packages aur galti se commit hue keys apne aap pakadta hai.
Zyadatar chhote projects isi automatic layer se bachte hain.
Security ka pehla step yaad rakhna nahi, automation hai.
Dependabot docsTool example last reviewed: September 2026
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Databases and data
0/2Tables, relations, SQL vs NoSQL, indexes, migrations, backups.
Tables, relations and what a database really isDatabase ek disciplined spreadsheet hai — rows, columns aur unke beech ke rishte.Indexes, migrations and keeping data healthyIndex kitaab ka index hai, migration schema ka commit — dono production me sambhal ke.2026 mein log ye use karte hain
DuckDB
Ek file jaisa fast analytics database, jo laptop par hi bade data par queries chalata hai.
Reports aur data analysis ke liye ab bada warehouse zaroori nahi.
Har database ek hi kaam ke liye nahi hota — sahi tool chuniye.
DuckDB docsTool example last reviewed: September 2026
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APIs and integrations
0/2REST, JSON, status codes, keys, webhooks, rate limits, third-party services.
APIs, JSON and status codesAPI do software ke beech ka menu hai — request bhejo, JSON me jawab lo.Keys, webhooks and depending on other people's servicesWebhook ulta call hai — wo aapko batata hai, aur har bahari service ek risk bhi hai.2026 mein log ye use karte hain
Hoppscotch / Bruno
API request bhejne, headers dekhne aur responses test karne ka open tool.
Team-friendly, git me save hone wale API collections ab normal hain.
API ko app banane se pehle alag se test karna sabse tez debugging hai.
Hoppscotch docsTool example last reviewed: September 2026
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Git and teamwork
0/3Pull requests, code review, merge conflicts, issues, planning, documentation.
Pull requests, review and merge conflictsPR ek proposal hai — review, feedback, phir merge. Conflict normal hai, panic ki baat nahi.Issues, planning and documentation that survivesLikha hua kaam yaad rehta hai — issue, acceptance criteria aur README teen sabse badi jeet hain.Documents a team actually runs onAchha README aapke bina bhi team ko chalu rakhta hai.2026 mein log ye use karte hain
GitHub Pull Requests + Codespaces
Review, discussion aur ready-made cloud dev environment ek jagah.
Naya contributor bina setup ke minutes me code chala leta hai.
Teamwork ka core: chhote PR, saaf review, jaldi merge.
About pull requestsTool example last reviewed: September 2026
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Cloud and infrastructure
0/2Servers, serverless, containers, CDNs, DNS, regions, scaling and cost.
Servers, serverless, containers and the cloudCloud kisi aur ka computer hai — aap rent lete ho, khareedte nahi.DNS, CDNs, regions and the cloud billDNS phonebook hai, CDN nazdeeki dukaan, aur region tay karta hai kitni der lagegi.2026 mein log ye use karte hain
Cloudflare Workers
Aapka code duniya bhar ke edge servers par chalta hai, bina server manage kiye.
Yehi model is app ke backend jaisa hai — serverless, edge-first.
Cloud ka matlab machine kiraye par lena nahi, code deploy karna hai.
Workers docsTool example last reviewed: September 2026
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Performance and scale
0/2Latency, caching, queues, load, Core Web Vitals, measuring before fixing.
Latency, caching and why things feel slowSlow ka matlab hamesha 'chhota server' nahi — pehle naapo ki waqt kahan ja raha hai.Queues, load and Core Web VitalsBhaari kaam background me daalo, aur speed ko user ke nazariye se naapo.2026 mein log ye use karte hain
PageSpeed Insights / Core Web Vitals
Real users ke liye page kitna tez laga, uska score aur exact bottleneck batata hai.
Speed ab guess nahi, measured metric hai — aur SEO par asar daalti hai.
Pehle naapiye, phir optimise kijiye.
PageSpeed InsightsTool example last reviewed: September 2026
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AI, LLMs and agents
0/2Tokens, context windows, embeddings, RAG, fine-tuning, local models, agents.
How an LLM actually works: tokens, context and hallucinationLLM agla shabd guess karta hai — samajhta nahi, isliye confident galti bhi karta hai.Embeddings, RAG, fine-tuning, local models and agentsRAG matlab pehle apna data dhoondo phir model se poocho — zyadatar cases me fine-tuning se behtar.2026 mein log ye use karte hain
Ollama (local models)
Laptop par hi open models download karke chalata hai, bina internet ke.
Privacy-sensitive kaam aur experiments ke liye local models 2026 me practical ho gaye hain.
Har AI feature ke liye bada cloud model zaroori nahi.
Ollama docsTool example last reviewed: September 2026
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Modern web stack
0/2React, components and state, routing, SSR, build tools, TypeScript, deployment.
React, components and stateUI ek function hai state ka — state badla, screen apne aap badal gayi.Routing, SSR, TypeScript and build toolsRoute ek page hai, SSR pehla view server se, TypeScript galtiyan pehle pakadta hai.2026 mein log ye use karte hain
TanStack Start
Type-safe routing, server functions aur data loading ek full-stack React framework me.
Dev Compass khud isi par bana hai, to yeh example aapke apne app ka hai.
Modern stack = typed routes + server functions + fast build.
TanStack Start docsTool example last reviewed: September 2026
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Testing and debugging
0/2Unit, integration and end-to-end tests, stack traces, and a calm debugging method.
Why tests exist, and which kinds are worth paying forTests dobara-dobara wahi cheez check karte hain, taaki purana feature na toote.Debugging: reading an error and narrowing it downGuess mat kijiye — error padhiye, phir aadha-aadha kar ke bug ko ghera daaliye.2026 mein log ye use karte hain
Vitest + Playwright
Vitest chhote unit tests turant chalata hai, Playwright asli browser me poora flow test karta hai.
Yeh jodi ab default testing setup hai, dono JS aur TS projects me.
Chhote tests speed dete hain, browser tests bharosa.
Playwright docsTool example last reviewed: September 2026
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Watching a live app
0/2Logs, metrics, traces, sensible alerts, incident response and blameless postmortems.
Logs, metrics and traces: seeing inside a running appLive app andar se dikhna chahiye — warna aap users ke complaint par hi chalenge.Alerts, incidents and blameless postmortemsAlert sirf usi cheez par jispe raat me uthna pade — baaki sab dashboard par.2026 mein log ye use karte hain
Sentry
Live app ke errors, stack trace aur affected users ka alert bhejta hai.
User ke complain karne se pehle problem pata chal jaati hai.
Ship karne ke baad dekhna band mat kijiye.
Sentry docsTool example last reviewed: September 2026
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Accessibility and good UX
0/2Semantic HTML, keyboard and screen readers, contrast, and loading, empty and error states.
Accessibility: who gets locked out, and the basics that fix itAccessible app sabke liye behtar hota hai — aur kaafi kuch sirf basics se ban jata hai.UX basics: loading, empty and error statesAchha UX matlab har state — loading, khaali, error — sochi hui ho.2026 mein log ye use karte hain
axe DevTools
Page par contrast, labels aur keyboard problems automatically scan karta hai.
Accessibility checks ab build pipeline ka hissa ban rahe hain, baad ka kaam nahi.
Ek scan se hi zyadatar aam accessibility galtiyan pakdi jaati hain.
axe DevToolsTool example last reviewed: September 2026
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Shipping to real users
0/2Payments and webhooks, pricing, analytics and privacy, licences and small releases.
Payments, pricing and the compliance you cannot skipCard details khud kabhi store mat kijiye — provider ko handle karne dijiye.Analytics, privacy, licences and shipping in small slicesChhote slices me ship kijiye, sirf zaroori data lijiye, aur licence padh lijiye.2026 mein log ye use karte hain
Stripe Payment Links
Bina code likhe payment page banakar paisa lena shuru kar dijiye.
Idea validate karne ke liye pura checkout banane ki zaroorat nahi rahi.
Pehle demand test kijiye, phir engineering me time lagaiye.
Stripe Payment LinksTool example last reviewed: September 2026
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How AI models are made
0/2Pretraining, fine-tuning, RLHF, parameters, Hugging Face, open weights and choosing a model.
How a model is made: data, pretraining, fine-tuning and RLHFPretraining se model bhasha seekhta hai, fine-tuning se kaam, aur RLHF se manners aate hain.Hugging Face, open weights and choosing a modelHugging Face AI ka GitHub hai — model, dataset, model card aur licence sab wahin milte hain.2026 mein log ye use karte hain
Hugging Face Hub
Open models, datasets aur demos ek jagah — model card, licence aur quantised files ke saath.
2026 me har naya open model sabse pehle yahin aata hai, isliye comparison yahin hota hai.
Hugging Face AI ka GitHub hai — pehle model card padhiye.
Hugging Face modelsTool example last reviewed: September 2026
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Running AI yourself
0/2GPU vs CPU, VRAM and quantisation, KV cache, batching, tokens per second and cost.
Why AI needs a GPU: VRAM, quantisation and what your laptop can runModel ko chalane ke liye poora model memory me hona chahiye — isiliye VRAM sabse bada limit hai.Serving a model: KV cache, batching, tokens per second and costKV cache purana kaam yaad rakhta hai, batching GPU bhar deta hai — dono milkar cost giraate hain.2026 mein log ye use karte hain
vLLM
Serving stack jo KV cache aur batching sambhal kar ek GPU par kai users chalata hai.
Self-hosting tabhi sasta padta hai jab GPU idle na rahe — yeh wahi kaam karta hai.
Batching ke bina apna GPU zyadatar khali baitha rehta hai.
vLLM docsTool example last reviewed: September 2026
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AI-native building & agents
0/3AI app builders, Codex and Claude Code workflows, context engineering, MCP, safety, evaluations and model choice.
AI builders, Codex and Claude Code: choose the right level of leverageAI builder speed deta hai; production ka ownership, review aur rollback phir bhi aapka hai.Context engineering, MCP and reliable tool callingAgent ko poora internet nahi, sahi context aur chhote typed tools chahiye.Safe AI products: evaluations, budgets and current model choiceModel leaderboard se nahi, apne eval, risk aur poore cost se choose kijiye.2026 mein log ye use karte hain
OpenAI Codex + Claude Code
Coding agents that inspect a repository, run tools, edit files and verify work from a terminal or managed environment.
In 2026 they support longer tasks, reusable project instructions, parallel work and richer computer/tool workflows.
Agent ko autonomy dijiye, par scope, tests aur approval gates ke andar.
OpenAI CodexTool example last reviewed: September 2026
Growth-ready product operations
0/3Reliable email and notifications, modern discoverability, localisation, Unicode and practical India-first privacy.
Transactional email and notifications that users can trustEmail send hona aur inbox me reliably pahunchna do alag problems hain.SEO and discoverability for search and answer enginesDiscoverability ka shortcut nahi—clear public content, clean metadata aur crawlable pages chahiye.Localisation, Unicode and practical DPDP privacyTranslation sirf words hai; localisation format, layout, culture aur user rights tak jaati hai.2026 mein log ye use karte hain
Resend
Transactional email API with domain verification, delivery events and developer-friendly templates.
Reliable product email still needs authentication, retries and bounce visibility even when setup feels simple.
Email bhejna easy hai; inbox tak reliably pahunchana real kaam hai.
Resend docsTool example last reviewed: September 2026
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