Loïc Kalbermatter

Loïc Kalbermatter is an independent developer whose open-source catalog currently centers on practical command-line utilities that streamline everyday digital hygiene. His flagship offering, newsletter-cli, addresses the quiet but persistent problem of inbox overload by giving technically inclined users a lightweight, privacy-respecting way to audit and purge unwanted newsletter subscriptions directly from the terminal. Written in cross-platform Go, the tool connects to any standard IMAP server, scans message headers for common mailing-list identifiers, presents a color-graded summary of senders and frequencies, and can batch-unsubscribe via built-in List-Unsubscribe headers or by generating ready-to-send leave requests. Typical use cases include spring-cleaning personal accounts that have accumulated years of marketing mail, reducing mailbox size before migration, or simply regaining focus by eliminating noisy lists without surrendering message data to third-party services. Because the utility operates locally and never forwards credentials elsewhere, it appeals to privacy-conscious professionals, system administrators, and developers who prefer CLI workflows over graphical email clients. Although the portfolio is presently a single-title affair, the project’s clean architecture and active GitHub presence suggest a template for future minimalist tools aimed at frictionless self-service automation. The software is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always install the latest release, and can be queued alongside other applications for unattended batch setup.