One question. Selected sections from YouTube and podcasts. One continuous Watch + Listen stream.
Cast is not meant to be another list of whole videos and episodes. The idea is to answer a question by finding useful sections across sources, then linking those selections into a playlist you can watch or listen to continuously.
For a question about reusable rockets, that might mean a video explaining recovery, a podcast discussing refurbishment, then another video about flight frequency. Each section keeps its source and time range. The continuity comes from the queue—not from merging or rehosting the originals.
These are two different problems. A search hit can tell us which original is relevant; it does not, by itself, tell us where the useful passage begins or ends.
The intended personal-search path starts with chosen channels and official search metadata, then checks whether the original can be played. A section needs separate timecoded evidence. A title match alone falls back to the full original; it must not invent a timestamp.
Personal search / in developmentThe current bounded experiment uses a named podcast episode, its original audio and a separately checked passage. It follows the same evidence rule as video: identify the source, support the start/end times, then play within that range. General podcast discovery is not yet a working service.
Bounded source experimentThe retained two-source NASA proof matches query terms against descriptions of already-reviewed, timecoded passages. It is a small proof, not a live transcript index or an AI that can find every moment. Scaling discovery while keeping the ranges trustworthy is still an open part of the work.
Experimental / not general searchUse the reusable-rocket Cast above: play through the original controls or choose a section in the right-side playlist.
The orange span on each card is the part we intend to play, positioned on the original source’s timeline. When the list loads, the lightning chain links those spans across YouTube and podcasts into one sequence.
At the end of a selected section, the queue hands off to the next source. The active card follows playback, while the original source time and selected duration remain visible.
Publisher, title and source-time range stay attached to every selection. The orange bar shows what is kept; the rest of the timeline makes the selection’s position understandable.
Selected sectionWhen the list loads, the ranges light up and the lightning path connects them in order. A video section, a podcast section and another video become one Cast, using the same queue interface as the product.
Connected queueUse the player or select a card. The player moves to that section, stops at its boundary and continues to the next source. This fixed topic uses local illustrative media, not live YouTube or podcast search.
Playback handoffCast uses the visual language of a radio: a recognizable device, a main playback area and controls that explain what happens next. Charcoal and warm-white surfaces keep the content legible; restrained orange identifies the active controls.
The design is developed through working interface candidates rather than a collection of disconnected screens. Home, topic navigation, queue and player are reviewed together, in Light and Dark, before refining playback states and the account journey.
The interface uses HTML, CSS and JavaScript modules, served through an existing Cloudflare Worker. Keeping the product in the browser makes the player and queue available through one Web surface.
Playback uses original provider players and permitted audio, with each item loaded independently. Source restrictions still apply. Cast must show unavailable media honestly and must not turn a title match into a claim about an exact passage.
Cast currently has a private Web pilot, Light and Dark UI, and a bounded NASA playback sample. Other sample topics are illustrative. This is not yet a public search service.
The next step is a complete owner journey: sign-in, remembered source choices and personal YouTube search. Broader discovery and an invited beta remain future work. Open Cast · private pilot ↗
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