Franco (Castamatic)

Developer of Castamatic Podcast Player for iOS. Founder, host and producer at https://digitalia.fm tech show. Sailor. Doctor in the spare time.

Public Key

npub1axu0t2tm3y8c5n0wuakepwggcz7sgadpw5c060azlfp4tchd9u0qejzjl7

NIP-05 Address

[email protected]

Profile Code

nprofile1qqswnw8449acjru2fhhwwmvshyyvp0gywksh2v8a87305s64utkj78spz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dstnwmyk

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1axu0t2tm3y8c5n0wuakepwggcz7sgadpw5c060azlfp4tchd9u0qejzjl7

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Last Notes

2026-05-10 08:47:43 UTC

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@nprofile…jnjt @nprofile…cyex Ciao Alberto, on my show we have a recurring segment “This Week in Piracy Shield”… 😄
https://cdn.masto.host/podcastindexsocial/media_attachments/files/116/549/409/791/300/142/original/6159b9217676da18.mp3

2026-04-20 09:34:41 UTC

Castamatic 13 with AI-generated transcripts and chapters is live on the store. Chapter generation requires a device that supports Apple Intelligence. Transcript generation also works on some older devices.
https://castamatic.com/blog/2026/04/20/castamatic-13/

2026-03-26 16:32:38 UTC

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@nprofile…x5pc 100% agree - run to the newest device is good only for Apple's bank account

2026-03-26 12:21:43 UTC

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@nprofile…x5pc yes, that means your device doesn’t support Apple’s libraries for AI

2026-03-25 15:33:55 UTC

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@nprofile…nh7l If you're on iOS 26 and "Generate Magic Chapters" isn't showing up here's what to check:
The episode needs to be fully downloaded — streaming won't work
Your device needs to support Apple Intelligence (iPhone 16+, etc.)
The on-device language model needs to be downloaded and ready — check Settings → Apple Intelligence
If a transcript is currently being generated, the option will appear once it's done

2026-03-25 15:05:58 UTC

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@nprofile…x5pc It's possible that speech recognition is not available on iPhone 11. Apple doesn't publish a list of supported device models. https://developer.apple.com/forums/thread/802863
I’ll post a new version that should give more info about the error.

2026-03-25 14:08:48 UTC

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@nprofile…574t @nprofile…7epg following that logic you could sue every podcast app with a skip forward button.

2026-03-25 14:06:51 UTC

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@nprofile…nh7l thank you Brian. I’ll look into it. The option to generate magic chapters is in the player menu (three dot icon)

2026-03-25 14:05:47 UTC

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@nprofile…x5pc well that's what beta are for 😄 Can you enable verbose logging, then send me the log file to info AT castamatic DOT com ?

2026-03-24 22:29:33 UTC

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@nprofile…574t I don’t know if we can consider transcribing as altering. But I was rude, sorry. You make a good point. I will have to think about this all.

2026-03-24 21:28:07 UTC

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@nprofile…574t But now that you mention it, I could consider reading some rss tag from a podcaster that doesn't want his work to be transcribed and put some label on the app like “this podcaster is so ashamed of his own words that doesn't want them to be transcribed” 😄

2026-03-24 21:26:09 UTC

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@nprofile…574t what if the listener downloads Leo’s mp3 and puts it into chatGPT or Claude? Would Leo sue ChatGPT? Or the listener?

2026-03-24 21:20:50 UTC

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@nprofile…574t I'm not chaptering any podcaster’s audio file. Listeners are. On their own devices. Like they could do with pencil and paper.

2026-03-24 18:46:45 UTC

We don't need no stinking MacMinis. Castamatic gives you Magic Transcript and Magic Chapters.
Locally generated using CoreLM and the Speech framework.
Available now in beta on TestFlight.
https://castamatic.com/beta

2026-03-10 13:24:52 UTC

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@nprofile…td70 @nprofile…w0mx I had the same idea, only then I remembered photosynthesis doesn't work by night 😄

2026-03-10 11:29:53 UTC

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@nprofile…w0mx can’t you just sleep in the open, like all proper australians do? 🐍🐊🕷️🔪 😆
https://cdn.masto.host/podcastindexsocial/media_attachments/files/116/204/646/482/853/359/original/6c889dc73a5a0fe3.jpeg

2026-02-27 16:18:38 UTC

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@nprofile…x5pc yes it does.When network is down it might signal not reachable, but when the connection is restored it should reconnect automatically.

2026-02-24 17:02:12 UTC

Castamatic 12.5 is out
- NWC wallets
- BoostBox API
- Automatic and manual backup
https://castamatic.com/jekyll/2026/02/21/nwc/

2026-02-24 13:59:16 UTC

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@nprofile…zv63 @nprofile…x5pc Hi Steven I agree with you 100%, but at this point the number of hosting services that offer wallet + metadata is 0. We are trying to set things in motion.

2026-02-24 12:16:25 UTC

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@nprofile…x5pc if we can have a common server, maybe hosted by podcast index, it would be great for me. I’m not too confortable on hosting users messages. I think I'll put an expiration date so messages are purged after 1 month.

2026-02-20 10:52:51 UTC

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@nprofile…ax8n @nprofile…w0mx @nprofile…7fxa @nprofile…k8p7 Current Castamatic beta supports NWC. https://castamatic.com/beta - if your alby wallet is connected, just disconnect and ask to connect to a new wallet and you'll have the NWC option.
https://cdn.masto.host/podcastindexsocial/media_attachments/files/116/102/579/064/566/788/original/688105f82fb855d9.jpeg
https://cdn.masto.host/podcastindexsocial/media_attachments/files/116/102/579/341/365/059/original/66521e264a157bb0.jpeg

2026-02-15 17:05:35 UTC

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Inappropriate indeed!
Dear Podcast Addict, don't you think that if the podcaster wanted to associate images to his own chapters, he would specify them himself?
https://cdn.masto.host/podcastindexsocial/media_attachments/files/116/075/733/383/708/823/original/c0be390bdf2bdb92.png

2026-02-10 08:21:35 UTC

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@nprofile…x5pc thank you Chad, good point

2026-02-09 15:58:40 UTC

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@nprofile…x5pc when connecting to a wallet that doesn't support keysend, Castamatic alerts the user only LnAddress will be used.

2026-02-09 15:40:31 UTC

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@nprofile…x5pc thank you Chad. I don't know why I thought Strike supported NWC.

2026-02-08 17:26:23 UTC

The new Castamatic beta includes, among many other new features, the ability to use NWC wallets. I’ve already tested a few different services with mixed results. AlbyHub works very well. Primal works fine for LNURLp but does not support keysend. I’m not able to test with Strike because it’s not available in my country. If anyone wants to try it out and share feedback, that would be great:
https://castamatic.com/beta

2026-02-08 13:49:41 UTC

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@nprofile…x5pc thank you Chad. Disconnect your wallet and ask to reconnect, you will have the option to pick an Alby account or any NWC compatible wallet.

2026-01-31 12:38:16 UTC

What NWC enabled wallets are currently in operation and available in Europe/Italy? CoinOS is currently not working.

2026-01-30 17:21:40 UTC

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@nprofile…x5pc @nprofile…vfcp I love Alby! They rock 🤟

2026-01-30 16:48:57 UTC

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@nprofile…td70 indeed I am! 😁 and there is more coming…

2026-01-27 19:48:15 UTC

Native Instruments GmbH is in preliminary insolvency (also parent co of iZotope, Plugin Alliance and Brainworx).
https://cdm.link/ni-insolvency/

2026-01-27 19:35:29 UTC

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@nprofile…7epg showbusiness for ugly voices

2026-01-26 08:24:57 UTC

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@nprofile…w0mx @nprofile…td70 I'm every day more convinced each feed should specify its own canonical feed url in the xml.

2026-01-15 17:54:49 UTC

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@nprofile…x5pc thank you, I'll have to check. Not an easy task to reproduce, it usually switches with no issues. Is it possible you had bad network when one podcast ended and the other began playing?

2026-01-14 12:18:44 UTC

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@nprofile…8t76 @nprofile…k8p7 I'm doing tests using https://api.getalby.com/lnurl/lightning-address-details When I get both LnUrl and keysend info I used to prioritize keysend for reasons, but for some addresses payments fail. eg. [email protected] -

2026-01-10 09:59:46 UTC

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@nprofile…zwqe Got it now! I’m so used to reading bug reports and feature requests that I didn’t realize you were just happily using it. Glad it felt good 🤙

2026-01-05 14:55:35 UTC

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@nprofile…zwqe you mean unsubscribe didn't remove the shows?

2025-12-30 16:01:27 UTC

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@nprofile…myyh @nprofile…4vsz I think for the time being I will put an expiration date and purge payments data older than a couple of months. If the podcaster is interested in collecting them I'm sure he will do it sooner.

2025-12-30 15:55:07 UTC

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@nprofile…myyh @nprofile…4vsz thank you. I was a little worried about record number explosion for streaming payments + multiple splits in the small server I'm running on. But maybe it's just useless premature optimization.

2025-12-30 15:47:59 UTC

@nprofile…4vsz @nprofile…myyh I’m working on a BoostBox API implementation for Castamatic and I have a quick question. When sending multiple splits for a single payment, do you post a single metadata object to the BoostBox API server and reference it in the comment of each split transaction, or do you create multiple entries, one for each split transaction?

2025-12-23 11:22:21 UTC

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@nprofile…wqpy is PCID expressed on the rss feed?

2025-12-15 17:50:44 UTC

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@nprofile…y5nd do you know if the chapter generation is performed on device or server side?

2025-12-11 10:42:04 UTC

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@nprofile…5yxp Hello Chad. The new version 12.0.1 is live now on the store. It should fix the issue you reported. Thank you.

2025-12-07 17:32:40 UTC

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@nprofile…5yxp Hello Chad. I cannot reproduce the problem. Can you point me to some podcast/episode with many chapter artworks where you experience the bug?

2025-12-06 19:03:51 UTC

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@nprofile…5yxp Hello chad, does it happen for just one podcast or for all podcasts with chapters?

2025-11-24 15:18:05 UTC

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@nprofile…60s3 @nprofile…5yxp @nprofile…y5nd @nprofile…sxxr @nprofile…wsp3 @nprofile…lgy5 Podcast Index 2.0 latest episode - timestamp 00:28:17 - Dave says their account on Alby was deactivated for too much load. Streaming payments while playing episodes issues too many invoice requests.

2025-11-24 12:21:50 UTC

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@nprofile…y5nd @nprofile…60s3 @nprofile…sxxr @nprofile…wsp3 It’s worth understanding how much traffic hosted nodes on Alby and other wallet services can actually handle. If we all shift to LNURL, will bigger shows eventually need to run their own node? How big are we talking?

2025-11-19 08:07:09 UTC

Castamatic 12 is out, with Liquid Glass UI, adaptive player color, new animations, new sleep timer UI, and many bug fixes. https://itunes.apple.com/it/app/castamatic-podcast-player/id966632553?mt=8

2025-11-13 21:07:07 UTC

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@nprofile…5yxp sharing episodes should be working now. Thank you for the head up

2025-11-13 17:20:18 UTC

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@nprofile…5yxp thank you Chad, looking into it after work.

2025-11-07 13:02:00 UTC

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@nprofile…5yxp thanks, I'll have to study a way to work around that

2025-11-07 12:59:55 UTC

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@nprofile…5yxp Ok, I'll have to test it out.

2025-11-07 12:41:46 UTC

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@nprofile…5yxp Thank you Chad. I wanted to make the app a little more visually interesting with changing player colors. As for the cut artwork, are you running iOS26 with some reduced transparency setting on?

2025-11-06 22:02:07 UTC

Castamatic is almost ready for the new iOS look, plus many bug fixes and improvements. Beta available on TestFlight: http://castamatic.com/beta

2025-11-06 16:46:56 UTC

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@nprofile…amf2 never thought about that, great idea!

2025-10-31 23:25:03 UTC

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@nprofile…y5nd Alby Hub is quite an amazing piece of software

2025-10-30 12:20:29 UTC

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@nprofile…ge5x @nprofile…myyh @nprofile…2q02 @nprofile…r5z7 correct, I was thinking about DNS and wrote VPN. Thank you

2025-10-30 12:11:17 UTC

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@nprofile…myyh @nprofile…2q02 @nprofile…ge5x @nprofile…r5z7 what kind of ad blocker are you testing with? VPN based like Pi-hole or system plugins?

2025-10-23 15:43:27 UTC

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@nprofile…60s3 @nprofile…5yxp @nprofile…vwpk @nprofile…25h2 @nprofile…k6ng @nprofile…2q02 well, I have three Alby accounts for my podcast, for Castamatic and for personal stuff, so sometimes I have to logout and switch between those. I understand for normal users it is a once a month login, but even then, compared to logging in to other services that just need unlocking the password manager with touch id or face id, it appears cumbersome.

2025-10-23 15:08:01 UTC

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@nprofile…60s3 @nprofile…5yxp @nprofile…vwpk @nprofile…25h2 @nprofile…k6ng @nprofile…2q02 as a user I must say it's really annoying having to go back and forth between the browser and the email client to login. Two factor authentication with a time based code managed with modern password managers is much faster and has good security.

2025-10-16 11:31:46 UTC

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@nprofile…5yxp as a workaround try pausing the episode before turning the car off. That should put the player in a state where the audiosession interruptions can't disrupt the position saving process.

2025-10-16 11:08:56 UTC

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@nprofile…5yxp thank you chad, at every iOS release they change and screw up the audio unit api / notifications. I'll have a look.

2025-10-15 20:04:33 UTC

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@nprofile…9ap7 thank you John for all your work

2025-10-15 15:02:14 UTC

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@nprofile…amf2 @nprofile…k6ng @nprofile…5yxp nope, I run a refresh task that loads all the transactions a couple hours before my show goes live, and auto-generate a report for all the donations for the episode. Also integrates donations from Paypal and Satispay using the relative APIs.

2025-10-15 10:56:15 UTC

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@nprofile…9ap7 thank you 🙏

2025-10-15 09:18:48 UTC

@nprofile…9ap7 Hello John, podpings not coming, I think the server needs your magic touch

2025-10-15 09:12:39 UTC

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@nprofile…k6ng @nprofile…amf2 @nprofile…5yxp I don't use Helipad, I have my own thingie that queries all transactions from Alby API and combines multiple streaming transactions from a single listener/episode into one database entry.

2025-10-11 15:09:11 UTC

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@nprofile…6746 I've been studying it, but haven’t written any code yet. NWC means users will connect wallets that don’t support keysend, get a lot of errors when trying to boost the shows they love, and write bad reviews and ask me for support.

2025-09-11 20:55:59 UTC

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@nprofile…2d4u @nprofile…6746 @nprofile…pvn3 the article is interesting, thank you very much, but it’s a very bad advertisement for nostr and nostr clients capabilities to communicate to human beings. We have html escaping since 1991 😄
https://cdn.masto.host/podcastindexsocial/media_attachments/files/115/187/656/655/883/465/original/c56924d125c2be93.png

2025-09-11 20:44:40 UTC

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@nprofile…6746 This is quite strange, never happened to me. Is there a way to reproduce it?

2025-09-11 09:52:23 UTC

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@nprofile…h82d your words really touched a chord, we are all in this together.

2025-09-08 10:10:53 UTC

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@nprofile…ywdy ❤️

2025-09-08 08:46:07 UTC

@nprofile…ywdy Hello John, Castamatic saw no podping coming in the last 4 hours. It looks like the service needs some kickstart

2025-09-07 15:07:38 UTC

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@nprofile…6746 annoying! Shownotes appearing from behind the transport controls is a cool feature, but it's so difficult to make all the autolayout constraints work an all devices. Back to the drawing board…

2025-09-06 19:43:54 UTC

Castamatic 11.0.6 is out now with support for Lightning Address and LNURL-pay.
If the LNAddress provides keysend data, Castamatic will use it as the primary method to send payments along with metadata.
If only LNURL-pay data is available, the app will still send the payment, but without metadata.

2025-08-19 17:50:43 UTC

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@nprofile…2802 @nprofile…6746 @nprofile…mp2c I think that might be a good solution. What format will you use to transmit metadata at that link? The plain bLIP10 json?

2025-08-16 08:43:15 UTC

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@nprofile…yqzt @nprofile…xy55 Thank you, the SSL certificate expired and somehow didn't auto-renew

2025-08-13 09:41:41 UTC

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@nprofile…6746 thank you

2025-08-13 09:16:40 UTC

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@nprofile…6746 Hi Chad. Working on LNAddress + LNUrl support for Castamatic. I just sent a test boostagram to your 2nd episode.

2025-08-04 19:48:44 UTC

@nprofile…zn42 What is the canonical URL for NoAgenda? PodcastIndex says http://feed.nashownotes.com/rss.xml, but this url permanent redirects (301) to https://feeds.noagendaassets.com/noagenda.xml. Castamatic updates its subscription following the redirect, and listens for podpings reporting https://feeds.noagendaassets.com/noagenda.xml. But they never come, because your podpings contain http://feed.nashownotes.com/rss.xml. The result is Castamatic users don't get podpings for NoAgenda. I'm a little at loss here.

2025-07-19 15:29:21 UTC

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@nprofile…6746 Maybe you should get some kind of authorization from the Alby guys? @nprofile…0z88

2025-07-07 17:50:10 UTC

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@nprofile…7y5m ❤️

2025-07-07 16:08:55 UTC

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@nprofile…zn42 it did, I received feature requests and bug reports telling me they subscribed to Castamatic premium because they heard about it on No Agenda.

2025-07-07 13:58:57 UTC

@nprofile…zn42 thank you for all the love for Castamatic on NA1775 ❤️

2025-07-06 09:11:59 UTC

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@nprofile…pvn3 @nprofile…h82d @nprofile…2802 @nprofile…6746 @nprofile…ye27 @nprofile…wuyh @nprofile…zn42 I think the common format should simply be the bLIP10 TLV record itself as defined in the specs. It's easy to send and receive that as a json object.

2025-06-25 20:51:45 UTC

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@nprofile…6746 @nprofile…cguj uhm, they used to work before last update, it looks like they need some work. Thank you for the heads up

2025-06-23 11:08:31 UTC

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@nprofile…ywdy Now podpings are coming. Thank you John.

2025-06-23 10:16:34 UTC

@nprofile…ywdy Hi John, looks like something’s stuck, no podpings are coming through on the websocket.

2025-06-20 17:51:39 UTC

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@nprofile…7y5m version on the app store now is more recent than the one on TestFlight

2025-06-20 17:07:09 UTC

Big update! Castamatic now supports live podcasts and instant alerts. Get notified the moment a show goes live or a new episode drops—powered by Podping. https://castamatic.com/jekyll/2025/06/20/castamatic-11/

2025-06-19 18:36:29 UTC

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@nprofile…6746 Fixed, thank you!

2025-06-19 16:40:38 UTC

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@nprofile…6746 thank you, what device model is that?

2025-06-17 06:23:02 UTC

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@nprofile…h82d @nprofile…vu32 The Polish have historically been the strongest winter mountaineers, they were the first to summit many of the eight-thousanders in winter. If anyone knows how to sleep in the cold, it’s them. You’re in good hands. 🥶

2025-06-14 15:29:23 UTC

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@nprofile…h82d podcast:guid simply fixes podcasting. There is no way to code an app without bugs that catalogs items without having a way to distinguish and identify every instance of such items. If only it could be made mandatory…

2025-06-07 10:50:45 UTC

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@nprofile…0a2a @nprofile…6746 @nprofile…zn42 @nprofile…h82d not at this time.

2025-06-07 10:49:53 UTC

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@nprofile…0a2a @nprofile…6746 @nprofile…zn42 @nprofile…h82d not at this time. And even manually putting the”feeds.podcastindex.org” feed address will not work, because they told me the other one (mp3s.nashownotes.com) was the canonical one, so I already put a workaround in Castamatic.
https://cdn.masto.host/podcastindexsocial/media_attachments/files/114/641/691/561/022/582/original/f352b73b84c4410e.png

2025-06-07 10:29:14 UTC

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@nprofile…0a2a @nprofile…6746 @nprofile…zn42 @nprofile…h82d I think it's better if we fix it for everybody 😁

2025-06-07 10:03:29 UTC

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@nprofile…0a2a @nprofile…6746 @nprofile…zn42 @nprofile…h82d ok. People subscribe to Podcasting 2.0 with this different urls:
http://mp3s.nashownotes.com/pc20rss.xml
https://mp3s.nashownotes.com/pc20rss.xm
https://ipfspodcasting.net/RSS/9/Podcasting20.xml
When subscribing via iTunes API or Podcast Index API, people get this URL:
https://mp3s.nashownotes.com/pc20rss.xml
Podpings are sent with this advertised URL:
https://feeds.podcastindex.org/pc20.xml
We need to specify a canonical URL in the feed, or an advertised URL in podcast:usesPodping, or it will never work the way it was meant to.

2025-06-07 08:35:43 UTC

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@nprofile…0a2a @nprofile…6746 @nprofile…zn42 I can confirm, your log corresponds 100% to mine. It looks like I get all podpings, but P2.0 is not sending many of them. @nprofile…h82d can you have a look at this? https://cdn.dgt.fm/temp/podping-p20-log.txt

2025-06-07 08:27:29 UTC

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@nprofile…0a2a @nprofile…6746 @nprofile…h82d @nprofile…zn42 sorry, I was looking with https in the url, they declare http in the podping (but https in the index)