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Hacktoberfest 2026 Challenge

This is the official tag for submissions and announcements related to Hacktoberfest Challenges.

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Ghost in the Logs: A 100% Offline AI Security Log Detective

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

Ghost in the Logs: A 100% Offline AI Security Log Detective

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2 min read
Git Séance: the deleted files that still haunt your repo

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

Git Séance: the deleted files that still haunt your repo

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5 min read
CodeNecromancer: Resurrecting Dead Repositories with Open-Weight Gemma

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

CodeNecromancer: Resurrecting Dead Repositories with Open-Weight Gemma

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3 min read
John Carmack deleted fast_inverse_sqrt() in 1999. In commit c51b980a, he replaced 0x5f3759df. We held an air-gapped séance with its ghost.

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

John Carmack deleted fast_inverse_sqrt() in 1999. In commit c51b980a, he replaced 0x5f3759df. We held an air-gapped séance with its ghost.

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Comments 1
8 min read
Butu 🧸: a friendly browser companion that gets lonely when you leave your work

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

Butu 🧸: a friendly browser companion that gets lonely when you leave your work

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Comments 6
9 min read
I Built a Ghost That Lives in My Terminal 👻 | Hacktoberfest 2026

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

I Built a Ghost That Lives in My Terminal 👻 | Hacktoberfest 2026

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3 min read
The recycle bin that revives deleted files.

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

The recycle bin that revives deleted files.

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3 min read
👻 GhostShell AI: A Digital Ghost Powered by Local AI

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

👻 GhostShell AI: A Digital Ghost Powered by Local AI

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1 min read
Vision Assistant: Ghost Edition — Local Desktop Spectral Agent & Offline Vision Pipeline

Vision Assistant: Ghost Edition — Local Desktop Spectral Agent & Offline Vision Pipeline

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2 min read
Vormir Sentinel

Vormir Sentinel

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3 min read
Ghost in the Machine: Necromancing Dead Codebases Locally with Gemma 3 & Ollama

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

Ghost in the Machine: Necromancing Dead Codebases Locally with Gemma 3 & Ollama

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5 min read
The Culpeper Séance: An Offline RAG Séance with Nicholas Culpeper

Gemma 4 Challenge: Build With Gemma 4 Submission

The Culpeper Séance: An Offline RAG Séance with Nicholas Culpeper

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4 min read
# 👻 The Ghost That Lives Inside My Browser — AI-Powered Virtual Assistant

# 👻 The Ghost That Lives Inside My Browser — AI-Powered Virtual Assistant

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2 min read
Ghost of Developers Past: A Way Back Into Unfinished Projects

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

Ghost of Developers Past: A Way Back Into Unfinished Projects

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6 min read
GHOSTWRITE AI: The Haunted Storyteller — Where Artificial Intelligence Meets the Supernatural.

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

GHOSTWRITE AI: The Haunted Storyteller — Where Artificial Intelligence Meets the Supernatural.

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2 min read
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