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gdevenyi/README.md

Hi, I'm Gabriel A. Devenyi (@gdevenyi)

🧠 Research Computing Associate β€” Cerebral Imaging Centre, Douglas Mental Health University Institute, McGill University πŸ”¬ Neuroimaging Infrastructure β€’ Reproducible Pipelines β€’ Research HPC πŸ“ MontrΓ©al, QuΓ©bec, Canada Β· @CoBrALab Β· @DouglasNeuroInformatics


🌍 About Me

I build and maintain the computational backbone of a neuroimaging research lab β€” turning messy multi-modal brain-imaging data into reproducible, automated, and scalable analysis. My work sits at the intersection of systems administration, scientific software engineering, and high-performance computing, so researchers spend time on science instead of fighting their tools.

  • πŸ”­ Building reproducible neuroimaging pipelines and the HPC/workstation infra behind them
  • 🌱 Currently working on local LLM inference and GGUF sizing tooling
  • πŸ‘― Open to collaborating on open, FAIR, reproducible research software
  • πŸ’¬ Ask me about neuroimaging pipelines, Ansible, containers, or Slurm

🧭 Research Focus

  • βš™οΈ Reproducible pipelines β€” versioned, containerized neuroimaging workflows
  • πŸ–₯️ Research HPC β€” Slurm clusters, standalone workstations, storage
  • 🧰 Automation β€” Ansible-driven, one-command lab infrastructure
  • 🧠 Image processing β€” registration, segmentation, atlasing (ANTs, MINC, ITK)
  • πŸ“¦ FAIR data β€” BIDS-organized, portable, share-ready datasets

πŸ§ͺ Active Development Topics

  • One-command neuroimaging workstation/cluster provisioning (Ansible)
  • Native execution of tools inside Apptainer/Singularity containers
  • Local LLM inference sizing β€” memory/perf calculators for GGUF models
  • Reproducible LaTeX toolchains for theses & CVs
  • Subcortical atlas remapping and QC tooling

🧰 Core Technical Expertise

Domain Tools & Technologies
Languages Python, Bash/Shell, C, LaTeX, Make
Automation / DevOps Ansible, Docker, Apptainer/Singularity, GitHub Actions, pre-commit
HPC Slurm, NFS, module systems, Linux clusters
Neuroimaging ANTs, MINC / minc-toolkit, ITK, BIDS, FSL, FreeSurfer
ML / Inference PyTorch, llama.cpp, vLLM, GGUF tooling
Version Control Git, Git LFS, semantic versioning

🧩 Open Source Work

Most of my open-source work ships through the two labs I build infrastructure for:

🧠 CoBrA Lab β€” neuroimaging pipelines & atlases

Repository Focus Highlights
RABIES Rodent fMRI Preprocessing + analysis pipeline for rodent imaging (61β˜…)
MAGeTbrain Segmentation Multiple Automatically Generated Templates brain segmentation (50β˜…)
optimized_antsMultivariateTemplateConstruction Template building Optimized ANTs template construction with qbatch support (40β˜…)
atlases Neuroanatomy Hi-res T1/T2 segmentations + MNI population averages (38β˜…)
qbatch HPC Batch execution of command lists on Slurm/PBS clusters (34β˜…)

🧬 Douglas Neuroinformatics β€” clinical data platforms

Repository Focus Highlights
OpenDataCapture Clinical EDC Electronic data capture for remote & in-person instruments (118β˜…) β€” opendatacapture.org
DataBank Data sharing Web platform for managing, versioning & sharing tabular datasets
ansible-playbooks Infrastructure Ansible provisioning for CIC workstations & servers

🧰 Personal projects β€” NeuroAnsible, huggingface-estimate, apptainer-exec-wrapper β€” live at github.com/gdevenyi?tab=repositories.


πŸ“š Scholarly Work

πŸ” Google Scholar Β· πŸ†” ORCID 0000-0002-7766-1187 Β· 🌐 gabriel.devenyi.ca Β· πŸ“„ CV

✍️ Latest Blog Posts

Auto-updated daily from gabriel.devenyi.ca via GitHub Actions.


βš™οΈ GitHub Metrics

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πŸ’» Tech Stack

Python Bash C LaTeX Ansible Docker Linux Git PyTorch


πŸ”— Labs & Projects


πŸ“« Connect

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  1. curriculumvitae curriculumvitae Public

    Source Files and latest version of my curriculum vitae

    TeX 2

  2. phd_thesis phd_thesis Public

    My PhD Thesis in LaTeX and all associated files

    TeX 9 2

  3. NeuroAnsible NeuroAnsible Public

    An ansible playbook to deploy a complete standalone neuroimaging workstation

    Makefile 29 5