Each project has the same CLI interface — learn one, know them all.
Economlings
Python
Interactive economics from supply & demand to DSGE models.
100 exercises10 chapters
Chapters
Basics, Microeconomics, Macroeconomics, Finance, Econometrics, Advanced Models, International, Public, Behavioral, Development
Physicslings
Python
Classical mechanics to quantum field theory, with simulations.
100 exercises8 chapters
Chapters
Classical Mechanics, Oscillations & Waves, Electromagnetism, Thermodynamics, Special Relativity, General Relativity, Quantum Mechanics, Advanced Quantum
Genlings
Python
Generative AI algorithms: Transformers, GANs, Diffusion, CLIP, LoRA.
68 exercises13 chapters
Chapters
Basics, Text Generation, Attention, Transformer, GPT, Image Generation, VAE, GAN, Diffusion, Multimodal, CLIP, Stable Diffusion, LLM Advanced
Algolings
Python
132 classic algorithms: GC, concurrency, crypto, compilers, ML.
132 exercises14 chapters
Chapters
GC & Memory, Memory Models, Concurrency, OS Algorithms, Compiler, Distributed Systems, Cryptography, Database, Rate Limiting, String Algorithms, Stream Processing, Graph Algorithms, Data Structures, ML Fundamentals
Cudalings
CUDA C++
GPU programming from hello-kernel to ray tracing & ML operators.
105 exercises29 chapters
Chapters
Intro, Kernels, Threads, Memory, Shared Memory, Sync, Optimization, Streams, Advanced, Algorithms, Image Processing, Deep Learning, Scientific Computing, Multi-GPU, Tensor Cores, CUDA Graphs, Cooperative Groups, Profiling, Libraries, Dynamic Parallelism, Projects, Unified Memory, Warp Primitives, Graph Algorithms, Sparse Matrices, Molecular Dynamics, Ray Tracing, Video Processing, ML Operators
ADM Algorithms
C++
Algorithm Design Manual exercises: sorting, graphs, DP, geometry, NP.
68 exercises15 chapters
Chapters
Analysis, Data Structures, Sorting, Graph Traversal, Weighted Graphs, Combinatorial, Dynamic Programming, Greedy, Strings, Geometry, NP-Complete, Divide & Conquer, Randomized, Advanced Graphs, Number Theory
Sutton RL
Python
Reinforcement learning: bandits to RLHF, following Sutton & Barto.
54 exercises20 chapters
Chapters
Bandits, DP, Monte Carlo, TD, N-Step, Planning, Approximation, Control, Off-Policy, Eligibility, Policy Gradient, Advanced, Exploration, Model-Based, Multi-Agent, Hierarchical, Imitation, Inverse RL, Offline RL, RLHF
ODSlings
Python
Open Data Structures: arrays, trees, heaps, graphs, sorting.
48 exercises12 chapters
Chapters
Intro, Arrays, Lists, Stacks & Queues, Hash Tables, Trees, Heaps, Graphs, Sorting, Advanced, Advanced Structures, Specialized Structures
Debuglings
C
Learn GDB/LLDB debugging: breakpoints, threads, core dumps, linker.
39 exercises13 levels
Chapters
Basics, Breakpoints, Execution, Variables, Call Stack, Threads, Memory, Core Dump, Advanced, Data Structures, Pointers, Memory Layout, Linker
Quantumlings
Python
Quantum computing with Qiskit: qubits to error correction & QML.
34 exercises8 chapters
Chapters
Intro, Entanglement, Algorithms, Error Correction, Variational, NISQ, Frontiers, Advanced
Asynclings
TypeScript
Asynchronous programming: callbacks, Promises, async/await, concurrency.
30 exercises7 chapters
Chapters
Basics, Promises, Async/Await, Error Handling, Concurrent, Advanced, Applications
JAXlings
Python
JAX framework: arrays, transformations, neural networks, parallelism.
30 exercises10 chapters
Chapters
Intro, Arrays, Transformations, Neural Networks, Advanced, Random, PyTrees, Control Flow, Parallel, Deep Learning
MPlings
C++
Multi-processor programming: locks, consensus, concurrent data structures.
26 exercises11 chapters
Chapters
Basics, Mutual Exclusion, Concurrent Objects, Foundations, Synchronization, Consensus, Spin Locks, Monitors, Linked Lists, Queues, Stacks
Vulkanlings
C++
Vulkan graphics API: instance to lighting, ending with a triangle.
20 exercises20 chapters
Chapters
Intro, Instance, Physical Device, Logical Device, Surface, Swapchain, Image Views, Render Pass, Pipeline, Framebuffers, Command Buffers, Sync, Triangle, Vertex Buffers, Index Buffers, Uniforms, Textures, Depth, Model Loading, Lighting