I craft software, play music, trade some go stones amongst a few other things.https://romain.dorgueil.net/enhttps://romain.dorgueil.net/blog/en/tips/2026/06/05/start-named-tmux-session-window-directory/https://romain.dorgueil.net/blog/en/tips/2026/06/05/start-named-tmux-session-window-directory/Create a detached tmux session, name its first window, and start it in a chosen directory, all in one command.Fri, 05 Jun 2026 00:00:00 GMTtipstmuxterminalshellproductivityhttps://romain.dorgueil.net/blog/en/tips/2026/06/04/create-or-attach-tmux-session/https://romain.dorgueil.net/blog/en/tips/2026/06/04/create-or-attach-tmux-session/A single idempotent tmux command that creates a session or attaches to it if it already exists — perfect for scripts and shell startup files.Thu, 04 Jun 2026 00:00:00 GMTtipstmuxterminalshellproductivityhttps://romain.dorgueil.net/blog/en/talk/2017/07/12/simple-etl-with-bonobo-europython-2017/https://romain.dorgueil.net/blog/en/talk/2017/07/12/simple-etl-with-bonobo-europython-2017/Presentation of Bonobo ETL at EuroPython 2017 - a simple Python 3.5+ tool for extract-transform-load processes. Includes video, slides and sprint summary.Wed, 12 Jul 2017 00:00:00 GMTconferencepythoneventep2017talkhttps://romain.dorgueil.net/blog/en/startup/2016/10/10/your-best-seo-strategy-is-to-ignore-it/https://romain.dorgueil.net/blog/en/startup/2016/10/10/your-best-seo-strategy-is-to-ignore-it/Stop wasting your time on Search Engine Optimizations (SEO), your business needs is a product that your users love, bots will follow them.Mon, 10 Oct 2016 00:00:00 GMTseowebcontentmarketingstart-upcompanybusinessproducthttps://romain.dorgueil.net/blog/en/tips/2016/09/12/meta-tags-pagination-canonical/https://romain.dorgueil.net/blog/en/tips/2016/09/12/meta-tags-pagination-canonical/Use rel=prev and rel=next link tags to help search engines understand pagination structure on your website, improving crawling and indexing of paginated content.Mon, 12 Sep 2016 00:00:00 GMTtipswebseogooglepaginationhttps://romain.dorgueil.net/blog/en/tips/2016/09/09/cleanup-merged-git-branches/https://romain.dorgueil.net/blog/en/tips/2016/09/09/cleanup-merged-git-branches/Clean up merged git branches using git-sweep to remove outdated branches from both local and remote repositories, keeping your git tree organized.Fri, 09 Sep 2016 00:00:00 GMTtipsgitsoftwarereleasevcshttps://romain.dorgueil.net/blog/en/tips/2016/09/08/redirect-non-www-to-main/https://romain.dorgueil.net/blog/en/tips/2016/09/08/redirect-non-www-to-main/Configure nginx to redirect non-www domains to www (or vice versa) for SEO consistency, including HTTP to HTTPS redirects with proper deep link support.Thu, 08 Sep 2016 00:00:00 GMTtipswebnginxhttpseohttps://romain.dorgueil.net/blog/en/web-performance/2016/09/06/4-instrumentation-measure-learn/https://romain.dorgueil.net/blog/en/web-performance/2016/09/06/4-instrumentation-measure-learn/Measure web performance improvements using Pagespeed statistics, Google Analytics, Search Console, and PageSpeed Insights to track connection time, response time, and user experience.Tue, 06 Sep 2016 00:00:00 GMTwebhttpnginxpagespeedperformanceassetscdnamazoncloudfrontdockercontainerhttps://romain.dorgueil.net/blog/en/web-performance/2016/09/06/3-amazon-cloudfront-cdn/https://romain.dorgueil.net/blog/en/web-performance/2016/09/06/3-amazon-cloudfront-cdn/Configure Amazon CloudFront CDN with Nginx and Pagespeed to serve static assets from geographically distributed edge locations, reducing server load and improving performance.Tue, 06 Sep 2016 00:00:00 GMTwebhttpnginxpagespeedperformanceassetscdnamazoncloudfrontdockercontainerhttps://romain.dorgueil.net/blog/en/web-performance/2016/09/06/2-nginx-pagespeed-nodejs/https://romain.dorgueil.net/blog/en/web-performance/2016/09/06/2-nginx-pagespeed-nodejs/Set up Nginx with Pagespeed module and Node.js backend in Docker containers for automatic asset optimization, HTML minification, and improved web performance without code changes.Tue, 06 Sep 2016 00:00:00 GMTwebhttpnginxpagespeedperformanceassetsdockercontainernodejshttps://romain.dorgueil.net/blog/en/web-performance/2016/09/06/1-light-speed-web-performance/https://romain.dorgueil.net/blog/en/web-performance/2016/09/06/1-light-speed-web-performance/Optimize website load speed using Nginx with Pagespeed module and Amazon CloudFront CDN. Part 1 of a 4-part series covering tools, techniques, and performance measurement.Tue, 06 Sep 2016 00:00:00 GMTwebhttpnginxpagespeedperformanceassetscdnamazoncloudfrontdockercontainerhttps://romain.dorgueil.net/blog/en/tips/2016/09/05/asynchronous-python-parralel/https://romain.dorgueil.net/blog/en/tips/2016/09/05/asynchronous-python-parralel/Run multiple asynchronous Python functions concurrently using asyncio.wait() to process tasks as they complete, with example code and sequence diagram.Mon, 05 Sep 2016 00:00:00 GMTtipspythonasyncparalleltasksthreadinghttps://romain.dorgueil.net/blog/en/tips/2016/08/27/rollout-rollback-kubernetes-deployment/https://romain.dorgueil.net/blog/en/tips/2016/08/27/rollout-rollback-kubernetes-deployment/Learn how to safely rollout new versions and rollback deployments on Kubernetes clusters using kubectl commands, with examples of rolling update strategies and health checks.Sat, 27 Aug 2016 00:00:00 GMTtipsdockercontainerkubernetesgoogle-cloudamazon-web-servicessystemoperationshttps://romain.dorgueil.net/blog/en/tips/2016/08/20/releases-with-git-semver/https://romain.dorgueil.net/blog/en/tips/2016/08/20/releases-with-git-semver/Manage software releases consistently using git-semver tool for semantic versioning, with step-by-step instructions for version generation, tagging, and PyPI publishing.Sat, 20 Aug 2016 00:00:00 GMTtipsreleasesoftwareversioningsemanticsemvergithttps://romain.dorgueil.net/blog/en/tips/2016/08/16/retrieve-a-shell-script-current-path/https://romain.dorgueil.net/blog/en/tips/2016/08/16/retrieve-a-shell-script-current-path/Bash shell tip: Get the real path of a running script using a cross-platform solution that handles symbolic links and relative paths.Tue, 16 Aug 2016 00:00:00 GMTtipsbashshellpathunixlinuxsystemhttps://romain.dorgueil.net/blog/en/agile/2016/08/02/planning-poker-is-not-about-estimating/https://romain.dorgueil.net/blog/en/agile/2016/08/02/planning-poker-is-not-about-estimating/Planning poker is more than an estimation technique - it's a powerful tool for improving team communication, sharing knowledge, and leveraging collective intelligence in software development.Tue, 02 Aug 2016 00:00:00 GMTagileplanning pokerestimatingcommunicationknowledgehttps://romain.dorgueil.net/blog/en/europython/2016/07/28/future-is-now/https://romain.dorgueil.net/blog/en/europython/2016/07/28/future-is-now/EuroPython 2016 highlights on Python's future including class attribute ordering (PEP 520), descriptor naming (PEP 487), Jupyter Lab improvements, and PyParallel GIL solution.Thu, 28 Jul 2016 00:00:00 GMTconferencepythoneventep2016futurehttps://romain.dorgueil.net/blog/en/europython/2016/07/27/asynchronous-programming/https://romain.dorgueil.net/blog/en/europython/2016/07/27/asynchronous-programming/EuroPython 2016 notes on asynchronous programming with Python including asyncio patterns, futures, Twisted integration, and new async tools like uvloop and asyncpg.Wed, 27 Jul 2016 00:00:00 GMTconferencepythoneventep2016asynciohttps://romain.dorgueil.net/blog/en/europython/2016/07/27/data-processing/https://romain.dorgueil.net/blog/en/europython/2016/07/27/data-processing/A few notes from EuroPython 2016 about data processing, natural language processing, machine learning...Wed, 27 Jul 2016 00:00:00 GMTconferencepythoneventep2016datahttps://romain.dorgueil.net/blog/en/europython/2016/07/27/testing/https://romain.dorgueil.net/blog/en/europython/2016/07/27/testing/A few notes from EuroPython 2016 about testing and quality assurance.Wed, 27 Jul 2016 00:00:00 GMTconferencepythoneventep2016testinghttps://romain.dorgueil.net/blog/en/europython/2016/07/27/web-scraping/https://romain.dorgueil.net/blog/en/europython/2016/07/27/web-scraping/Notes from EuroPython 2016 on web scraping tools and best practices including Jupyter, Selenium, client-server architectures, and Scrapy.Wed, 27 Jul 2016 00:00:00 GMTconferencepythoneventep2016scrapingcrawlinghttps://romain.dorgueil.net/blog/en/europython/2016/07/26/europython-2016/https://romain.dorgueil.net/blog/en/europython/2016/07/26/europython-2016/My notes about Europython 2016 Bilbao. Topics: asyncio, scraping, data processing, machine learning, testing, and some goodies from the future.Tue, 26 Jul 2016 00:00:00 GMTconferencepythoneventep2016https://romain.dorgueil.net/blog/en/talk/2014/12/27/docker-the-container-revolution/https://romain.dorgueil.net/blog/en/talk/2014/12/27/docker-the-container-revolution/Presentation about Docker and container technologies at Anchor Coworking on December 27th, 2014, including slides and Q&A session covering Docker, CoreOS, Rocket, and practical DevOps considerations.Sat, 27 Dec 2014 00:00:00 GMTdockerlinuxinfrastructurecontainerdeliverydevopshttps://romain.dorgueil.net/blog/en/docker/2014/12/22/docker-registry-nginx-front-container/https://romain.dorgueil.net/blog/en/docker/2014/12/22/docker-registry-nginx-front-container/Set up Nginx as a reverse proxy for Docker private registry in a separate container, enabling virtual host configuration and fine-grained HTTP control.Mon, 22 Dec 2014 00:00:00 GMTdockerlinuxinfrastructurecontainerdevopslxcdocker registrynginxorchestrationhttps://romain.dorgueil.net/blog/en/docker/2014/12/21/docker-registry-amazon-s3-storage-backend/https://romain.dorgueil.net/blog/en/docker/2014/12/21/docker-registry-amazon-s3-storage-backend/Configure Docker private registry to use Amazon S3 as storage backend for container images, including IAM setup, common issues, and complete working configuration.Sun, 21 Dec 2014 00:00:00 GMTdockerlinuxinfrastructurecontainerdevopslxcdocker registryaufsfilesystemamazon s3awscloudhttps://romain.dorgueil.net/blog/en/docker/2014/12/20/docker-setup-a-private-registry/https://romain.dorgueil.net/blog/en/docker/2014/12/20/docker-setup-a-private-registry/Step-by-step guide to set up a private Docker registry using the official registry container, including local setup, common issues, and solutions for insecure registry endpoints.Sat, 20 Dec 2014 00:00:00 GMTdockerlinuxinfrastructurecontainerdevopslxcdocker registryhttps://romain.dorgueil.net/blog/en/git/2014/12/16/git-config/https://romain.dorgueil.net/blog/en/git/2014/12/16/git-config/Essential Git configuration commands and useful aliases to set up a productive Git environment, including shortcuts for common commands and color settings.Tue, 16 Dec 2014 00:00:00 GMTgitconfigenvironmentdvcshttps://romain.dorgueil.net/blog/en/php/2011/09/05/i-see-huge-controllers/https://romain.dorgueil.net/blog/en/php/2011/09/05/i-see-huge-controllers/Best practices for organizing PHP/Symfony controllers and model layers to avoid spaghetti code, reduce maintenance costs, and improve developer productivity.Mon, 05 Sep 2011 00:00:00 GMTphpprogrammingbest practicesymfony1https://romain.dorgueil.net/blog/en/python/2011/08/29/give-your-app-superpowers/https://romain.dorgueil.net/blog/en/python/2011/08/29/give-your-app-superpowers/Learn how to enhance your WSGI applications with powerful middleware, including the amazing weberror interactive Ajax debugger for Python web development.Mon, 29 Aug 2011 00:00:00 GMTpythonwsgihttpwebdebuggerwebobmiddlewarehttps://romain.dorgueil.net/blog/en/python/2011/08/22/wsgi-the-first-steps/https://romain.dorgueil.net/blog/en/python/2011/08/22/wsgi-the-first-steps/Build a Python web application from scratch using WSGI, the standard interface between web servers and Python applications, with practical examples using webob.Mon, 22 Aug 2011 00:00:00 GMTpythonwsgihttpwebtutorialwebobhttps://romain.dorgueil.net/blog/en/database/2011/01/10/handling-empty-where-in-clauses-in-dbals/https://romain.dorgueil.net/blog/en/database/2011/01/10/handling-empty-where-in-clauses-in-dbals/Comparing how different ORMs (Doctrine, Propel, SQLAlchemy, Django, Rails) handle empty WHERE IN clauses in SQL, and why the simplest approach is often correct.Mon, 10 Jan 2011 00:00:00 GMTsqlpythonphpdatabasedjangosqlalchemypropel1doctrine1ruby on railshttps://romain.dorgueil.net/blog/en/the-roots/2010/01/24/http-is-the-webs-language/https://romain.dorgueil.net/blog/en/the-roots/2010/01/24/http-is-the-webs-language/Understanding HTTP fundamentals: the request/response protocol, methods (GET, POST), status codes, and why web developers must know the language of the web.Sun, 24 Jan 2010 00:00:00 GMTmiscprogramminghttpstandardrootswebhttps://romain.dorgueil.net/blog/en/software/2009/09/23/all-about-backward-compatibility/https://romain.dorgueil.net/blog/en/software/2009/09/23/all-about-backward-compatibility/Real-world case study of a backward compatibility break in PHP 5.2.11 that affected symfony projects, highlighting why stable branches must remain stable.Wed, 23 Sep 2009 00:00:00 GMTmiscsoftwarebest practicephpprogramminghttps://romain.dorgueil.net/blog/en/database/2008/07/10/foreign-keys-ondelete-for-dummies/https://romain.dorgueil.net/blog/en/database/2008/07/10/foreign-keys-ondelete-for-dummies/Understanding foreign key onDelete behaviors in relational databases: RESTRICT, CASCADE, and SET NULL modes with practical examples for Doctrine and Propel ORMs.Thu, 10 Jul 2008 00:00:00 GMTphpdatabasedoctrine1propel1yamlxmlrelation