Learning Path — Labs for College Students & New Engineers

Curated hands-on repositories from saurabhahuja71 for college students, early-career engineers, and anyone learning cloud-native development.

These are practice labs, not production frameworks. Each track is ordered from easier → harder when possible. Start with one track; finish a lab before jumping tracks.

How to use this hub

1. Pick a track that matches what you want to learn.
2. Open the lab repo → read its README → follow Quick start.
3. When a lab still has a thin README, treat the code as the source of truth and open an issue if you get stuck.
4. Prefer building something small of your own after each lab.

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Tracks at a glance

Track	Best for	Labs
Go	Backend APIs, gRPC, workshops	6
Python	Flask/FastAPI, data, ML intro	7
Java / Helidon	Microservices on the JVM	8
Ruby & Rust	Full language curricula for Java/Python/Go engineers	2 + comparisons
Cloud & Kubernetes	Docker, K8s, operators	5
Terraform & IaC	Infra as code (OCI / Azure / AWS ideas)	3
CI/CD	GitHub Actions, pipelines	1
AI & Agents	MCP, agents, Redis+AI	4
Oracle Linux & systems	OL tutorials, UEK, containers, QEMU, VPN	curated
Systems & fun projects	Raspberry Pi, VPN, VB	5
Organizations review	Every org you belong to + cleanup notes	7 orgs
Frontend / fullstack	React + backend samples	3

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1. Go · APIs

Golang tutorials for students — from Python bridge and language workshops to Gin/Postgres and full-stack gRPC. Each lab has an SEO-friendly README (tutorial title, FAQ, keywords).

#	Lab	Level	What you'll practice	Status
0	goforpython — Go for Python developers	Beginner	Side-by-side Python vs Go	README ready
1	golang-workshop — Golang workshop basics	Beginner	Arrays, slices, maps, JSON, concurrency	README ready
2	gotraining-labs — Go training labs	Beginner → Intermediate	Pointers, structs, interfaces, IO	README ready
3	fullstack-go-bookapp-example — Gin + PostgreSQL book app	Intermediate	REST API + HTML templates	README ready
4	grpc-golang-todo — gRPC Go full-stack todo	Intermediate	gRPC, grpc-gateway, React, Postgres	README ready

Related (Java REST design, not Go): User-Management-REST-Service — Jakarta EE user CRUD (layered architecture) · README ready

Recently opened (was private):

Lab	Focus
sample-restapi-go	Minimal /books REST server
simple-rest-api-in-go	Go + Postgres + Docker Compose
demo-container-app	Go container + K8s YAML

2. Python · Data · APIs

Python tutorials for students — browser playground → FastAPI/Flask full stack → ML notebooks. Each lab has an SEO-friendly README (tutorial title, FAQ, keywords).

#	Lab	Level	What you'll practice	Status
0	python-by-example — Python in the browser (Pyodide)	Beginner	Interactive Python playground	README ready
1	react-fastapi-todo — FastAPI + React + PostgreSQL	Intermediate	Full-stack todo, OpenAPI, Compose	README ready
2	pets-updates — Flask Pets + GitHub workshop	Beginner → Intermediate	Flask/SQLAlchemy + Copilot labs	README ready
3	sample-regression-model — Linear regression (scikit-learn)	Beginner (ML)	Bangalore rent prediction	README ready
4	datascienceandmachinelearning — NumPy / Pandas notebooks	Intermediate	Multi-day DS curriculum	README ready
5	algotrading-sample — Algo trading learning stub	Intermediate	Datetime + strategy scaffold	README ready

Containers companion: hello — multi-arch Docker/buildah Hello World · README ready

Recently opened (was private):

Lab	Focus
pyhton-flask-sample-app	Flask sample (name has historical typo)
python-rest-api-flask-example-basic-store	Flask store REST API
cloud-native-python-sample	Flask + SQLite

3. Java · Helidon microservices

Helidon MicroProfile tutorials for students — a numbered mini-course from unit testing to Slack integration. Each lab has an SEO-friendly README (tutorial title, FAQ, keywords) so Google and GitHub search can find them.

Do them in order:

#	Lab	Level	What you'll practice	Status
0	junit-labs — JUnit 5 tutorial for beginners	Beginner	Unit testing with JUnit Jupiter	README ready
1	helidon-cloudnative-microservice-sample — Helidon cloud-native REST microservice	Beginner+	REST, health, metrics, Docker, K8s	README ready
2	helidon-rest-db-connection-demo — Helidon JPA + H2 database	Intermediate	REST + JPA + transactions	README ready
3	helidon-openapi-demo — Helidon OpenAPI / Swagger UI	Intermediate	API documentation	README ready
4	helidon-security-demo — Helidon Basic Auth & RBAC	Intermediate	AuthN / AuthZ / roles	README ready
5	helidon-slack-demo — Helidon Slack webhook	Intermediate	Outbound integrations	README ready
—	learning-java-springboot	Beginner → Intermediate	Spring Boot learning materials	Code-first
—	react-java-todo	Intermediate	React + Java full-stack todo	Code-first

Recently opened: hello-world-java — Gradle Hello World (Lab 0 companion).

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Ruby & Rust From Scratch

Full beginner → intermediate curricula for engineers who already know Java, Python, or Go. Side-by-side comparisons throughout. Each language is its own repository so tooling stays clean.

#	Lab	Level	What you'll practice	Status
1	ruby-from-scratch — Modern Ruby from scratch	Beginner → Intermediate	Syntax, OOP, blocks/procs, Enumerable, RSpec, metaprogramming, Sinatra API	README ready
2	Rust-learning — Rust from scratch (ownership-first)	Beginner → Intermediate	Ownership/borrowing, structs/enums, traits, Result/Option, iterators, threads + Tokio, smart pointers	README ready

Hub extras (this repo)

Resource	Description
tracks/ruby-and-rust	Learning orders, how to study, clone commands
Comparisons	Memory (GC vs ownership), concurrency, errors, when to choose which, syntax cheatsheet
Capstones	Polyglot / real-world project ideas
Resources	Books, docs, communities

Suggested path

1. Read tracks/ruby-and-rust
2. Clone both curricula
3. Option A (recommended for app engineers): Ruby first → comparisons → Rust
4. Option B: Rust first (if you care about systems/performance)
5. Finish with a capstone

git clone https://github.com/saurabhahuja71/ruby-from-scratch.git
git clone https://github.com/saurabhahuja71/Rust-learning.git
# optional: this hub for comparisons
git clone https://github.com/saurabhahuja71/learning-path.git

SEO / tags: ruby rust from-scratch ownership tutorial java python go learning-path

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4. Cloud, Kubernetes & containers

#	Lab	Level	What you'll practice
1	hello	Beginner	Multi-arch container builds
2	docker-scout-example	Beginner	Image scanning / Scout concepts (thin — expand soon)
3	memcached-operator	Advanced	Kubernetes operator pattern
4	raspios-qemu	Intermediate	Raspberry Pi OS under QEMU
5	oraclevpn	Intermediate	VPN-related systems work

Recently opened (was private):

Lab	Focus
kubernetes-basics	nginx Pod/Deploy/Service YAMLs
helm-basic	Minimal Helm chart
demo-container-app	App + Docker + K8s

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5. Terraform & infrastructure as code

IaC tutorials for students — Oracle Cloud with Terraform/Ansible, Azure Jenkins, plus private samples coming later. SEO-friendly READMEs on each public lab.

#	Lab	Level	What you'll practice	Status
1	oci_terraform_samples — Terraform on OCI	Intermediate	VCN, compute, LB, buckets, modules	README ready
2	oci_ansible_samples — Ansible on OCI	Intermediate	Playbooks, facts, httpd	README ready
3	terraform-azure-jenkins-sample — Jenkins on Azure VM	Intermediate	azurerm + bootstrap script	README ready

Recently opened (was private):

Lab	Focus
terraform-gke-app-demo	GKE cluster with Terraform
host-dynamic-static-web-azure-terraform-docker-sample	Azure dual-VM web + Docker/Minikube

6. CI/CD

CI/CD tutorials for students — GitHub Actions custom actions and repo hygiene templates. Jenkins-on-VM is under the Terraform track.

#	Lab	Level	What you'll practice	Status
1	github-action-demo — Docker container action	Beginner	action.yml, Dockerfile, workflow	README ready
2	sample-template-repo — GitHub template hygiene	Beginner	README, SECURITY, CONTRIBUTING	README ready
—	terraform-azure-jenkins-sample	Intermediate	Self-hosted Jenkins via Terraform	README ready

Recently opened: jenkins-sample — Jenkinsfile + Groovy sample.

7. AI · Agents · MCP

Modern AI labs for students — Model Context Protocol, terminal agents, LangChain ReAct, and Redis RAG. Each has an SEO-friendly README (tutorial title, FAQ, keywords).

#	Lab	Level	What you'll practice	Status
0	mcp-demo — MCP server in Go	Beginner → Intermediate	Tools, stdio/HTTP, Docker	README ready
1	agenterm — Terminal AI agent + MCP client	Intermediate	Ollama/OpenAI TUI, tools	README ready
2	agentic-ai-sample — LangChain ReAct agent	Intermediate	OpenAI + Tavily search loop	README ready
3	workshop-redis-ai — Redis vector search & RAG	Intermediate	Hybrid search, semantic cache, guardrails	README ready

Oracle Linux & systems

Oracle Linux learning path for students and engineers—plus links where this maintainer actively participates in Oracle open source (containers, database images, operators).

A. Official Oracle Linux learning (start here)

Study and contribute upstream (do not rely on stale personal forks of huge trees):

#	Upstream project	What you'll learn
1	oracle/oracle-linux	Scripts, examples, tutorials to get started with Oracle Linux
2	oracle/migrate-to-ol	Migrate existing systems to Oracle Linux
3	oracle/container-images	Official Oracle Linux container images
4	oracle/linux-uek	Unbreakable Enterprise Kernel (UEK) sources
5	oracle/bpftune	BPF-based auto-tuning on Linux
6	oracle/dtrace	DTrace on Linux
7	oracle/qemu	QEMU tree used in Oracle contexts

Docs worth bookmarking: docs.oracle.com/oracle-linux · yum.oracle.com

B. Active open-source participation (containers & data)

These are not “toy labs”—they are production Oracle OSS repos this maintainer contributes to via PRs:

Project	Focus	How to learn
oracle/docker-images	Dockerfiles for Oracle Database, Java, Instant Client, …	Read OracleDatabase/, build lab images, study PR history
oracle/oracle-database-operator	Kubernetes operator for Oracle Database	Operator patterns on OL/OKE-style clusters

Personal working fork (for PRs only—prefer upstream for students): saurabhahuja71/docker-images

C. Personal companion labs (SEO READMEs)

Lab	Level	Practice
raspios-qemu	Intermediate	QEMU aarch64 on Oracle Linux 9 hosts (bundle pattern when packages are missing)
oraclevpn	Intermediate	Podman + OpenConnect/AnyConnect-style VPN container
hello	Beginner+	Multi-arch buildah/Docker images (amd64/arm64)

Suggested 2-week OL starter plan

Week	Focus	Actions
1	Install & basics	Install OL (or OL container), work through oracle/oracle-linux, try migrate-to-ol docs
1	Containers	Pull/build from container-images; multi-arch with hello
2	Virtualization	raspios-qemu on an OL9 laptop/server
2	Product containers	Skim docker-images OracleDatabase samples (licensing applies)

SEO tags for this track

oracle-linux uek enterprise-linux podman qemu containers oracle-database docker-images ol9 linux-admin tutorial

8. Systems & side projects

Prefer the Oracle Linux & systems track for OL/UEK/container study. This section keeps smaller personal experiments.

Lab	Notes
raspios-qemu	Boot Raspberry Pi OS under QEMU
oraclevpn	VPN project
Rust-learning	Full Rust curriculum — see Ruby & Rust track
ruby-from-scratch	Full Ruby curriculum — see Ruby & Rust track
vbcookbook	Visual Builder cookbook
vbstudiolabs	VB Studio labs
hello_flutter	Flutter sample (needs content)

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9. Frontend · fullstack

#	Lab	Level	What you'll practice
1	ahujasa-frontend-backend-sample	Intermediate	Front + back sample
2	react-fastapi-todo	Intermediate	React + FastAPI
3	react-java-todo	Intermediate	React + Java

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Suggested 4-week starter plan (college)

If you are early in college and want a structured month:

Week	Focus	Labs
1	Language fundamentals	python-by-example or golang-workshop or start ruby-from-scratch / Rust-learning
2	First API	react-fastapi-todo or grpc-golang-todo or Sinatra chapter in ruby-from-scratch
3	Containers	hello + read about multi-arch builds
4	Cloud / automation	oci_terraform_samples or github-action-demo

Stretch: pick one Helidon lab or mcp-demo in week 4 if you already know Java/AI.

Dedicated language deep-dive (8 weeks): follow Ruby & Rust From Scratch — Ruby first or Rust first — using the comparisons in tracks/ruby-and-rust.

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Repo quality legend

We are improving labs over time. Use this when you open a repo:

Status	Meaning
Ready	Code + usable README (goal for all public labs)
Code-first	Code works; README is thin — follow source + issues
Shell	Placeholder — being filled or retired
Private → public	Good lab still private; will open after cleanup

This hub will be updated as READMEs are standardized (what / audience / prerequisites / quick start / next lab).

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Contributing as a learner

You do not need to be an expert:

• Open an issue: “Lab X failed on Ubuntu 24.04 with error …”
• Suggest README fixes (typos, missing steps)
• Share what you built after finishing a track

Keep PRs small and focused. Prefer clarity over cleverness.

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Organizations review — all GitHub orgs

Complete inventory of GitHub organizations associated with @saurabhahuja71 (from API membership). Use this section to decide what students should follow vs what to archive or hide.

Org	Role	Public on profile?	Public repos (approx.)	Purpose (today)	Student relevance	Suggested action
oracle	member	Yes	~315	Open Source at Oracle (Graal, OCI SDKs, WebLogic, docker-images, OL, …)	High — primary professional OSS	Keep; link from Oracle Linux & container tracks
Utilties (name spelling)	admin	No	~35	“Placeholder for forked repos” + skills sandboxes	Low for portfolio	Review forks; delete unused; rename org if kept
LeafixOS	admin	No	3	Arch-based OS experiment (leafix-iso, forum)	Medium if ISO is real	Fill READMEs or archive if abandoned
quantdlinux	admin	No	2	Debian-based QuantD Linux (quantd-iso, site)	Medium (distro/ISO learners)	SEO README + link from systems track if active
quantg-linux	admin	No	0 public (quantg-iso private)	QuantG ISO placeholder	Low until public	Publish or merge into quantdlinux
quantr-linux	admin	No	0	Empty org	None	Delete org or park a single README
Tradebots71	admin	No	0 public (private trading bots)	Covered-call / m.Stock bots	None for public students	Keep private; never expose keys; optional later “paper trading” lab

Org-by-org notes

1. oracle — keep & highlight

• What it is: Oracle’s main public OSS org (developer.oracle.com/open-source).
• Why it matters for students: production-grade code, real PR process, Oracle Linux, containers, operators, Graal, OCI SDKs.
• Your angle: active PRs on docker-images, oracle-database-operator, plus OL/UEK/container learning path above.
• Do not treat personal forks as the source of truth—send students to oracle/... upstream.

2. Utilties — cleanup candidate

Utilties cleanup status (safe batch) — done via archive

Active keepers (6):

• Forks: docker-images, oracle-database-operator
• Originals: raspberrypios, oraclelinux-docker (private), ubuntu-docker (private), paxosworkshop

Archived (31 one-shot forks): GitHub Skills repos, Spoon-Knife, and unused forks (grafana, kubespray, fzf, nushell, bottlerocket, meetup-golang, …). Archived = read-only and hidden from normal “active” browsing; can un-archive later.

Hard delete (optional later): token needs delete_repo scope:

gh auth refresh -h github.com -s delete_repo
~/utilties-safe-cleanup.sh   # deletes non-keeper forks permanently

• What it is: Admin org described as “Placeholder for forked repos” (note the spelling Utilties).
• Contains: forks such as docker-images, oracle-database-operator, GitHub Skills sandboxes (introduction-to-github, …), private oraclelinux-docker / ubuntu-docker.
• Problem: duplicates personal forks; noisy for discovery; typo in org name.
• Suggested cleanup:
  1. List every repo → keep only forks with open PRs or unique commits.
  2. Delete skills one-shot repos after completion.
  3. Either rename org to something clear (saurabh-forks) or fold remaining work under the user account.
  4. Document in org profile README: “Working forks only — prefer upstream.”

3. LeafixOS — productize or archive

• Repos: leafix-iso, leafix-forum, .github.
• If ISO builds still matter: add SEO READMEs + install docs + link from systems track.
• If not maintained: archive the org repos and pin a “historical” note.

4. quantdlinux — distro track (active-ish)

• quantd-iso — Debian-based ISO (you already merged prep/release PRs).
• quantdlinux.github.io — project site.
• Next: student-facing README (build ISO, burn, first boot), screenshots, license clarity.
• Optional: link under Oracle Linux & systems as “related community distro experiments” only if you want that brand public.

5. quantg-linux / quantr-linux — empty or private-only

• quantg-linux: private quantg-iso only → either open-source with README or delete org.
• quantr-linux: zero repos → delete empty org to reduce clutter.

6. Tradebots71 — keep private

• Private: covered_call_bot, covered_call_bot_mstock.
• Not part of the public student curriculum (financial risk + secrets).
• Hard rules: no API keys in git; prefer paper/sandbox modes; separate from learning-path.

Summary scorecard

Priority	Orgs	Action
Strategic	oracle	Feature in hub + profile; contribute upstream
Tidy	Utilties	Cull forks/skills; rename or document
Decide	LeafixOS, quantdlinux	Ship docs or archive
Remove / merge	quantg-linux, quantr-linux	Empty/private-only noise
Private only	Tradebots71	Stay off public learning hub

Personal account cleanup (saurabhahuja71)

Action	Count	Notes
Archived empty originals	20	Shells with no real code (test-repo, empty terraform basics, …)
Archived personal forks	102	Click-forks / workshops; reversible
Active keepers (forks)	2	docker-images, oracle-database-operator (Oracle OSS work)
Active originals	~69	Curriculum labs + private demos still available

Profile is much cleaner: ~71 active vs ~193 before this pass. Un-archive any fork you need for a PR.

Empty / thin orgs status

Org	Status	Action taken / next
quantr-linux	Empty (0 repos)	API delete needs admin:org scope. Delete in UI: org → Settings → Delete this organization. Or: gh auth refresh -h github.com -s admin:org then gh api --method DELETE orgs/quantr-linux
quantg-linux	1 private repo (quantg-iso)	Keep until you merge into quantdlinux or open-source the ISO
Utilties	Cleaned	31 forks archived; org profile README added; 6 active keepers
LeafixOS	Active experiment	leafix-iso README improved; still needs ISO build docs
quantdlinux	Active	Already has solid quantd-iso README — good public distro lab
Tradebots71	Private bots	Leave private

Profile visibility

Currently only oracle is public on the GitHub profile org list. Other orgs are private membership or not shown—fine for experiments; promote an org only when its README and purpose are clear.

Related links

• Student hub: learning-path
• Oracle Linux track: Oracle Linux & systems
• Website: onenova.in
• Profile site (GitHub Pages): saurabhahuja71.github.io

About the author

Saurabh Ahuja — Principal Member of Technical Staff (Oracle), cloud & infrastructure, Oracle Linux, Kubernetes, Go, operators, and Oracle container images.

• Website: www.onenova.in
• Profile: saurabhahuja71
• GitHub Pages: saurabhahuja71.github.io
• LinkedIn: saurabhahuja71

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License note

Each lab keeps its own license (or none yet). Check the individual repository before reusing code in coursework or products.

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Progress: hub + curriculum + cleanup archives + 12 private demos opened public → optional hard-delete scopes / remaining private thin demos.Utilties/personal archive cleanup → next: open private demos or admin:org/delete_repo for hard deletes.Utilties archive + personal archive (122) → next: open private demos or hard-delete after auth scopes.