At Samvera Connect 2019 there was a small number of presentations about ongoing work on Wings - "a Valkyrie adapter with data compatibility with Active Fedora" as part of the technology stack under the Hyrax gem. There were references to "Hyrax on Wings" and, almost inevitably, two related hex sticker designs emerged.
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Logo, Hyrax, Samvera, Valkyrie, Wings, and Connect 2019
A workshop given at Samvera Connect 2017 described thus and Workshop going over the interface, configuration, patterns, and interaction points for using Valkyrie, a library to enable persisting metadata and files into a variety of different backends with a common interface.
Valkyrie is a new persistence layer for Samvera, designed to address performance and sustainability problems. It was developed through the existing Samvera Working Group process, showing that the current Samvera community governance structure can be used to tackle big problems. Valkyrie features pluggable persistence options, allowing Samvera applications to use not just the historical combination of Fedora and Solr, but also other options like Fedora or Solr by themselves, PostgreSQL, and local disk. Allowing Samvera applications to use different persistence options refocuses the Samvera community, shifting away from persistence in Fedora as the defining aspect of the community. Instead, the focus shifts to the shared tools built by the community. and A presentation at Samvera Virtual Connect 2018 described thus
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Lightning talk, Virtual Connect 2018, Samvera, and Valkyrie
A lightning talk at Samvera Virtual Connect 2019 described thus and This will be a shorter presentation to give an update on changes to Valkyrie since Samvera Connect, as well as provide some guidance on when 2.0 will be released and what to expect.
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Lightning talk, Virtual Connect 2019, Samvera, and Valkyrie
A team at Duke University Libraries refactored the Duke Digital Repository software stack, replacing Fedora 3 with the Valkyrie gem. The project kicked off in November of 2018, and concluded with the rollout of DDR 2.0.0 in January of 2020. Presenters will share the team’s experience and provide an overview of the DDR’s updated architecture. The video recording of this segment is available at the 'Related URL' below.
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Screencast, Virtual Connect 2020, Samvera, and Valkyrie
A presentation at Samvera Connect 2020 described thus and Update on recent and coming work for the Valkyrie gem. The 'Related URL' below links to the start of this presentation in the YouTube recording of the day's events.
A presentation given at Samvera Connect 2020 On-line (originally titled 'Cloud storage service uploads for a Valkyrie repository') and described thus and This presentation aims to outline and discuss attempts throughout 2019 and 2020 to integrate an early pre-release of the BrowseEverything 2.0 component for supporting Google Drive file uploads into a Samvera repository. While this shall be restricted in scope for cases which were specific to the Princeton University Library and a Valkyrie-based repository Figgy, the hope is to encourage discussions regarding obstacles which were encountered and to aim to generalize the solutions which were discovered in this integration. The 'Related URL' below links to beginning of this presentation in the day's YouTube recording.
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Cloud services, Architecture, Samvera, Valkyrie, and Connect 2020
New to Samvera? Welcome! We understand how steep the learning curve may seem when getting started. Samvera 101 is an introductory presentation that will cover fundamental principles with a sampling of common topics and definitions used within the Samvera stack and community. Framework topics include discussions around, Rails, Sidekiq, Data Stores, Fedora, Solr, Blacklight, etc. While application level topics include discussions around, Avalon, Hyrax, Hyku, etc. Like a prerequisite class, this talk is designed to prepare developers and community members for success! Attendees will leave having a greater understanding of Samvera's components and how they come together to create a Samvera application. The 'Related URL' below links to a YouTube recording with closed captioning., and A presentation given at Samvera Connect 2020 On-line described thus
This talk will outline the Surfliner code base, describe the GitLab monolithic source repository, and discuss the reasons behind choosing this model of source control management. It will include background on the systems and workflows used by the UC San Diego and UC Santa Barbara teams that make managing and working productively with a single repository feasible, in addition to a psychomachia-style discussion of the advantages and trade-offs of this approach. The 'Related URL' below links to a video recording of the session. The video has closed captioning. and A presentation given at Samvera Connect 2020 On-line described thus
Resource models. This will include information on the major changes that were made, descriptions of gotchas and workarounds, and a look at how close we are to being able to use any Valkyrie storage adapter. I’m hoping to include benchmark data as well to compare the various adapters. The 'Related URL' below links to a video recording of the session. The video has closed captioning., A presentation given at Samvera Connect 2020 On-line described thus, I will talk about the process I went through (and possibly am continuing to go through) to convert our Hyrax application’s ActiveFedora, and Base object models to Valkyrie
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Hyrax, Workflow, Connect 2020, Samvera, and Valkyrie
A presentation updating delegates at Samvera Connect 2018 about work on the Valkyrie gem. A video recording of this session is available at the 'Related URL' below.
Valkyrie is a new persistence layer for Samvera, supporting multiple backends for storing files and metadata. Currently supported backends include Fedora, PostgreSQL and Solr for metadata, and Fedora and local disk for files. Valkyrie provides an abstraction layer over file and metadata persistence, allowing an application to be configured to use different backends without code changes. This workshop will include, Description, A workshop given at Samvera Connect 2018 described thus, and An overview of Valkyrie's design, including why the Data Mapper pattern was used, and how Valkyrie addresses sustainability issues with ActiveFedora Status updates on current Valkyrie development, including applications built using Valkyrie, and efforts to use Valkyrie in Hyrax Hands-on exercises to give attendees first-hand experience working with Valkyrie and demonstrate how concepts from Samvera applications work with Valkyrie
however, all of Rail's most common UI elements and features will be retained. If time permits, we will also add Blacklight as a dependency for search and retrieval., How Valkyrie differs from ActiveRecord How to manage the differences between Valkyrie and Rails while retaining most of Rails' common features In this workshop, participants will learn how to build a simple Rails application using Valkyrie as a dependency. Data will be persisted with Valkyrie's data mapper pattern and not with ActiveRecord, and Slides from a workshop given at Samvera Connect 2019 and described thus
Triangular sticker and hex sticker for Samvera's 'Valkyrie' gem based on an illustration from the 1910 edition of 'The Rhinegold & the Valkyrie' by Richard Wagner, illustrated by Arthur Rackham. The work is available as an e-book under Project Gutenberg as a work on which US copyright has expired.
Samvera circulated a "Season's Greetings" card for the first time in December 2020. It features the Samvera tree festooned with decorative lights and incorporates in the winter scene the logos for Samvera's major software items.
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Avalon, Samvera, Community, Valkyrie, Hyrax, Hyku, and Branding
Wings, the project to move Hyrax to Valkyrie, has been underway for most of this year. What does this transition mean for your existing Hyrax application? How should you account for it in your future planning? How can you take advantage of this work today? This presentation will address these questions for a general community audience. and A presentation at Samvera Connect 2019 described thus
