FlareGet vs Hydra

FlareGet is a download manager and accelerator for Windows, Mac, and Linux. It uses dynamic file segmentation and can download segmented files from multiple mirror sites, while checking for expired URLs. The manager supports HTTP, HTTPS, and FTP downloads, plus full Metalink support. It can resume unfinished downloads and retry failures, though FTP downloads cannot be resumed. Users can set speed limits and control simultaneous downloads, schedule transfers, and import URLs from text or HTML files for batch downloading. FlareGet lists browser integration for Firefox, Internet Explorer, Chrome, Chromium, Opera, and Safari. Its features page describes one-click Flash video downloads from YouTube in all browsers; the maker says it is available in 17 languages. The free plan is free and offers version 5.0.0 downloads for Windows, Mac, and Linux. The download page lists 5.0.0 as the stable release dated April 25th, 2020. Pro licenses are one-time payments, but prices are not shown; each covers one platform and includes free upgrades to new versions.

Hydra is a continuous integration service for projects based on Nix. It checks out project source periodically or continuously, builds it, runs tests, and produces reports. Work is organized into jobsets whose inputs can trigger builds when they change; jobsets can also depend on one another. Flake jobsets are supported when their outputs expose a hydraJobs attribute set. Jobs can produce packages, ISO images, or tarballs, and jobset inputs can use Git checkout sources. Hydra also provides a JSON API. It is aimed at Nix and NixOS package developers, not people who only need to use NixOS. Hydra is open source under GPL-3.0 and listed at free. It is self-hosted, with no hosted option listed, and running it is currently supported only on NixOS; the repository recommends the NixOS module for production. Flake evaluation is restricted from accessing files outside the Nix store. Some state is stored in the database, so backups are needed, and the wiki reports that hydra-queue-runner can sometimes leave queued builds unscheduled.