Multipass 1.17 Adds Debian, Fedora, and Custom Image Support for Local VMs

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Canonical's Multipass 1.17 removes its Ubuntu-only restriction, allowing its lightweight CLI to provision Debian and Fedora virtual machines directly. The tool runs on native hypervisors such as KVM on Linux, Apple's Virtualization Framework on macOS, and the Host Compute System API on Windows. Users can also launch instances from custom .img or .qcow2 image URLs, which enables minimal distributions like Alpine Linux. The article provides command-line examples for launching these VMs and notes that non-Ubuntu images use different default usernames, which can be standardized with a cloud-init configuration file.

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Comparer deux versions d'un contrat PDF mot à mot avec Python

Un PDF ne conserve pas d'historique des modifications, ce qui oblige à comparer directement les deux fichiers pour repérer les changements. L'article examine trois méthodes : comparaison des pages rendues pixel par pixel, comparaison du texte extrait ligne par ligne, et comparaison mot par mot. Sur une paire de contrats de test, le diff mot par mot identifie les mêmes cinq modifications même lorsque le texte est recomposé avec une autre mise en page, contrairement aux deux autres méthodes. L'auteur présente un script Python d'environ 120 lignes utilisant PyMuPDF et difflib, qui récupère les coordonnées de chaque mot modifié et réécrit les changements sous forme de commentaires dans le PDF. Il indique aussi qu'un logiciel de bureau, PDF Editor d'osFoundry, applique la même logique de comparaison mot par mot.

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ProgrammingDEV Community ·

Why Senior Craft Depends on Context and Process, Not Just Code Output

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ProgrammingDEV Community ·

Ten Claude Skills a Freelancer Actually Uses Weekly for Client Work

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ProgrammingDEV Community ·

PostgreSQL's SET SESSION AUTHORIZATION alters both session and current user identities

PostgreSQL tracks two identities per session: the authenticated session user and the current user used for permission checks. SET SESSION AUTHORIZATION can change both, which is useful for controlled administrative tasks but risky in pooled or diagnostic contexts. Only superuser sessions may switch the session user to an arbitrary name, while other sessions are limited to their own authenticated name, and DEFAULT or RESET restore the original identity. The command cannot run inside a SECURITY DEFINER function and affects which roles later SET ROLE commands can assume, so reviews checking only current_user may miss it. The guidance recommends separate database roles, resetting session state before connection reuse, and verifying session_user, current_user, and current_setting('role') in tests.

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