Open sourceDataIntermediate
pandas
Official Python data-analysis library; documentation, tests, and edge cases provide approachable contributions.
pandasAbout 2 hrpythondataframe
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Open sourceDataIntermediate
Polars
A high-performance DataFrame library in Rust; many Python-side tasks need no Rust at all.
PolarsAbout 2 hrpythonrust
Open sourceBackendIntermediate
Prisma
A TypeScript ORM whose issues demand clear reproductions — good practice at diagnosing bugs.
PrismaAbout 2 hrtypescript
Open sourceAIAdvanced
PyTorch
Official deep-learning framework repository for tensors, autograd, and distributed training.
Linux FoundationAbout 2 hrpythonpytorch
AI updateAI
PyTorch Blog
Official PyTorch framework releases, ecosystem projects, and engineering updates.
PyTorch Foundation
Official source · PyTorch BlogVerified Aug 24, 2026
Open sourceFrontendIntermediate
React
Official React repository for learning modern UI internals through docs, tests, and issue discussions.
MetaAbout 2 hrjavascriptreact
Open sourceBackendIntermediate
Rust
The Rust language repository; issues labelled E-easy come with step-by-step mentoring notes.
Rust FoundationAbout 2 hrrust
Open sourceDataIntermediate
scikit-learn
Classic machine-learning library for understanding production algorithms through examples, docs, and tests.
scikit-learnAbout 2 hrpythonstatistics
Open sourceBackendAdvanced
Spring Boot
Official Java enterprise framework repository for large-scale testing, builds, and compatibility work.
BroadcomAbout 2 hrjavaspring
Open sourceFrontendIntermediate
Storybook
Component workshop tooling with small-grained tasks — a gentle way to get a dev environment running.
StorybookAbout 2 hrtypescript
Open sourceBackendIntermediate
Supabase
The open-source Firebase alternative; documentation and example issues suit a first pull request.
SupabaseAbout 2 hrtypescriptpostgres
Open sourceFrontendIntermediate
Svelte
Official repository for Svelte, including its compiler, runtime, and extensive test suite.
SvelteAbout 2 hrsveltejavascript
CompetitionBackendAdvanced
National Student Computer Systems Capability Competition
Official student competition portal for operating systems, compilers, databases, and computer systems.
National Association of Computer Education in Colleges and UniversitiesCost to verifyChina
Official source · National Student Computer Systems Capability CompetitionVerified Aug 24, 2026
Open sourceFrontendBeginner
Tailwind CSS
Official utility-first CSS framework repository, approachable through docs, reproductions, and small fixes.
Tailwind LabsAbout 2 hrcsstooling
InternshipFrontend · Backend · AI · DataIntermediate
Tencent Campus Recruitment
Official Tencent portal for internships, campus roles, and recruiting events across multiple technical fields.
TencentChina
Official source · Tencent Campus RecruitmentVerified Aug 24, 2026
CompetitionDataIntermediate
Tianchi Competitions
Official Alibaba Cloud Tianchi directory for data-science, algorithm, and engineering competitions.
Alibaba CloudCost to verifyChina
Official source · Tianchi CompetitionsVerified Aug 24, 2026
Open sourceFrontendIntermediate
Vite
Official modern frontend tooling repository for learning module resolution, dev servers, and plugins.
ViteAbout 2 hrjavascripttooling
Open sourceAIIntermediate
vLLM
An LLM inference engine — the place to understand KV caching and continuous batching.
vLLMAbout 2 hrpythoncuda
Open sourceFrontendIntermediate
Vue Core
Vue core implementation for studying reactivity, compilers, and TypeScript engineering.
Vue.jsAbout 2 hrvuetypescript
CompetitionBackendAny levelDue Oct 10, 2026
DeepInfra Round 1 (Codeforces Round 1126, Div. 1 + Div. 2)
The official source provides no summary. Open the item to read the original.
CodeforcesFreeGlobal
AI updateAI
Gemini 4 Argon: our next era of frontier intelligence
Today, we’re announcing our new frontier model, Gemini 4 Argon, which is rolling out to a set of trusted cyber defenders through our Fairwind Program . Built to sustain deep reasoning across complex, long-horizon workflows, Argon is fundamentally changing the way we work and build at Google. It delivers frontier perfo…
Google DeepMindPublished Oct 1, 2026
Official source · Google DeepMind BlogVerified Oct 9, 2026
AI updateAI
AI is changing developer work. Here are three skills to strengthen.
Learn to direct AI agents, critically review their output, and keep technical judgment at the center of your workflow. The post AI is changing developer work. Here are three skills to strengthen. appeared first on The GitHub Blog .
GitHubPublished Oct 2, 2026
Official source · GitHub AI & MLVerified Oct 9, 2026
AI updateAI
Broadening access to Skala creates a faster path to predictive DFT
Skala 1.1, the updated deep-learning exchange-correlation functional from Microsoft Research, provides greater accuracy, expanded accessibility across the computational chemistry ecosystem, and a living benchmark to track computational performance. The post Broadening access to Skala creates a faster path to predictiv…
Microsoft ResearchPublished Aug 21, 2026
Official source · Microsoft ResearchVerified Oct 9, 2026
AI updateAI
Getting the Source Right, Not Just the Fact: Source-Aware Verification for MCP Agents
Our latest paper, ProvenanceGuard: Source-Aware Factuality Verification for MCP-Based LLM Agents (read it on Hugging Face , or on arXiv in the meantime), targets that gap. The failure mode we care about is one we call cross-source conflation: a claim that is true somewhere in the evidence, but attributed to the wrong…
Hugging FacePublished Sep 29, 2026
Cross-checked · Hugging Face BlogVerified Oct 9, 2026