Posts – Andrea Zonca

How to Use AI Chat Assistants While Traveling

Traveling often means unreliable or expensive internet access, especially on airplanes or in remote areas. Here are two practical ways to keep using AI chat assistants even…

Voyager enters ACCESS allocations Phase

ai

sdsc

As of June 1, 2025, SDSC’s Voyager supercomputer has transitioned from its testbed phase to the ACCESS Allocations Phase. All research use now requires an official ACCESS…

How to use GitHub Copilot for Scientific Computing

github

ai

python

GitHub Copilot is rapidly transforming the landscape of scientific computing by streamlining code development and accelerating research workflows. This guide outlines how…

Python and AI Coding Summer Camp in person in San Diego

python

I’m excited to announce that I’ll be teaching a brand new Python and AI Coding Summer Camp in person in San Diego, hosted at the Italian School of San Diego (Kearny Mesa)!

VS Code Copilot Agent Mode: A Productivity Showcase

llm

ai

Visual Studio Code, together with GitHub Copilot in agent mode, enables a more focused and efficient development workflow. Below are three practical examples of how this…

Astrophysics Papers Daily Summaries Notebook with the Jetstream LLM Inference Service

astrophysics

llm

jetstream2

Fetch today’s astro-ph papers from arXiv, summarize abstracts with llm, and output a Markdown summary.

BK18 Added to Panexp Model Suite and New Websky Radio Source Models in PySM 3.4.1

pysm

cmb

Following up on my previous post about Panexp model suite simulations, there have been several important updates:

Deploy a NFS server to share data between JupyterHub users on Jetstream

kubernetes

jetstream

jupyterhub

linux

This is an updated version of my 2023 tutorial on deploying a NFS server to share data between JupyterHub users on Jetstream.

How to request High Performance Computing (HPC) resources

hpc

I am often asked how a scientist located in the US can access supercomputing resources. I decided to write a blog post with an overview of the options, consider that I’m…

PySM 3.4.1 Released

openscience

pysm

python

PySM version 3.4.1 is now available. It can be downloaded from PyPI. The release notes detail new features and improvements.

healpy 1.18.1 released

healpy

python

Just released healpy 1.18.1, this version includes important bug fixes, please test and open issues at https://github.com/healpy/healpy/issues

New Simulations of the Panexp Model Suite for Planck and WMAP

pysm

cmb

Following up on my recent post about PySM models for Galactic emission, I have recently executed three new simulations of the Panexp model suite:

Jetstream2 Usage Monitoring

jetstream2

Monitoring resource usage on cloud platforms is essential for managing allocations effectively. For users of Jetstream2, the Unidata team has developed a useful script to…

Deployment of BinderHub by Project Pythia on Jetstream 2

kubernetes

jetstream2

Project Pythia has recently published a blog post about their deployment of BinderHub on Jetstream 2. This blog post discusses Project Pythia’s efforts to address “Jupyter…

Gateways 2024 - Tutorial on Creating a Serverless Research Data Repository based on Globus

data

Following our work published at PEARC 2024 presenting a Data Portal based on a static website built on top of Globus HTTPS services, we presented a tutorial at Gateways 2024.

New Paper on Arxiv about Models of Galactic Emission in the Microwaves for CMB Experiments

openscience

pysm

python

A new paper has been published on Arxiv discussing models of Galactic emission in the microwaves for Cosmic Microwave Background (CMB) experiments:

Use Jetstream’s DeepSeek R1 as a code assistant on JupyterAI

jetstream

llm

Thanks to Openrouter, there is now a way of using the Jetstream LLM inference system, in particular the powerful Deepseek R1 model, as a code and documentation assistant in…

Authenticate to GitHub in the Browser with the Device Flow

github

Authenticating to GitHub in the browser using the device flow is essential for applications that cannot directly handle OAuth redirects. This method allows users to…

Save Jupyterlite Notebooks to GitHub

github

JupyterLite runs entirely inside the browser, which means it doesn’t have access to the underlying operating system. Its storage is persistent across restarts of the machine…

Using GitHub Releases to keep track of Large Artifacts

github

GitHub Releases provide a way to attach large artifacts, such as binaries or large autogenerated files, without polluting the repository. A release points to a specific…

Italian and chess classes in San Diego

italian

My wife Maura D’Andrea is Principal and Teacher of Italian school of San Diego.

Deploy Kubernetes and JupyterHub on Jetstream with Magnum and Cluster API

kubernetes

jetstream

jupyterhub

UPDATED 2025-04-14: Added echo test
UPDATED 2025-04-12: Set a fixed IP address for the NGINX Ingress controller.

Proposal for of Simons Observatory Data Products Attribution

data

CC BY 4.0 only requiring attribution and not restricting commercial use or remixes.

Run Windows and WSL on Jetstream

jetstream

Need access to a Windows machine? You can leverage Jetstream 2, spin up a Virtual Machine with Windows Server 2022 and access the Windows graphical desktop through your…

Allow users to self-invite to a Google Calendar event

openscience

Google Calendar is the most popular calendar service, and it is widely used in academia, often Scientific Collaborations maintain one or multiple shared calendars to keep…