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Filter 243 public project briefs by path and level. Sign in to track progress and reviews. Each brief exposes its grading criteria before you start.
Take a real (or test) website and front it with Cloudflare. Add the domain, set the web record to proxied (orange-cloud), and configure: HTTPS with...
Build and deploy a small but real application on Cloudflare Workers (or Pages + Functions) using Wrangler. It must use at least two storage primitives...
Build a production-shaped application entirely on Cloudflare. Include: (1) a full-stack app on Pages/Workers with D1 + R2 + KV (no traditional...
Find a real, open pull request (in an open-source repo or your own) and write a complete, high-quality review. Your review must: read the diff...
Practice the AUTHOR side. Take a non-trivial change and prepare it for review the right way: keep it SMALL and focused (one logical change — split if...
Design the code-review practice for a whole team. Deliver: (1) a REVIEW GUIDE / checklist covering what reviewers look for (priority order:...
Build a small program (any language, no big libraries) that makes data representation tangible: convert an integer between decimal, binary, hex, and...
Simulate computation from the gate level up, in code. Implement the basic gates (AND/OR/NOT/XOR) — ideally building the others from NAND to prove its...
Write the front-to-back pipeline that turns source into execution for a small language (arithmetic with variables, conditionals, and ideally...
For a small web app (your own, or a sample you control), produce a STRIDE threat model that identifies the main risks to its confidentiality,...
In YOUR OWN lab, stand up a deliberately-vulnerable practice app (e.g. OWASP Juice Shop or a sample you control — never a system you don't own)....
Build a blue-team setup for an app you run. (1) DETECTION: centralize logs and add alerts for suspicious events (repeated auth failures, privilege...
Take a real, messy public dataset (e.g. a Kaggle CSV, a city open-data export, or survey results) and produce a clean, analysis-ready table plus an...
Given a multi-table dataset (e.g. orders + customers + products in PostgreSQL/SQLite/DuckDB, or a sample warehouse), answer 4-6 real business...
Produce a stakeholder-ready deliverable: either an interactive dashboard (Tableau/Power BI/Looker, or a notebook/Streamlit) OR a written insight...
Build a small ELT pipeline over a real dataset (a public API or CSV files). Requirements: EXTRACT the source and LOAD it raw into a warehouse (or...
Build a scheduled, tested pipeline. Requirements: use an ORCHESTRATOR (Airflow, Dagster, or Prefect) to run a DAG (ingest -> transform -> test) on a...
Build a production-shaped data platform. Requirements: (1) INGESTION from a source — CDC or a batch connector (optionally a streaming path with Kafka...
Take a real dataset (e.g. a Kaggle CSV) and go from raw data to a first honest model in a notebook. Clean the data (justify drop-vs-impute for missing...
Build a properly validated supervised model and compare a few algorithms. Use a scikit-learn PIPELINE + ColumnTransformer so preprocessing is fit on...
Implement, from scratch and well-tested, the core data structures: a dynamic array, a hash map (with collision handling), a stack, a queue with O(1)...
Solve at least 12 algorithm problems spanning the core patterns (hashing, two pointers, sliding window, binary search, BFS/DFS,...
Deliver a complete, communicated data-science project that answers a real question. Include: (1) clear problem framing (target, success metric,...
Build a small but real system whose performance depends on correct data-structure choices — an LRU cache (hash map + doubly linked list, O(1)...