ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

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{ "@context": [ "https://www.w3.org/ns/activitystreams", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "litepub": "http://litepub.social/ns#", "directMessage": "litepub:directMessage", "Hashtag": "as:Hashtag" } ], "id": "https://fedifreu.de/users/chpietsch/statuses/114315227532319224", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-10T19:05:43Z", "url": "https://fedifreu.de/@chpietsch/114315227532319224", "attributedTo": "https://fedifreu.de/users/chpietsch", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://fedifreu.de/users/chpietsch/followers" ], "sensitive": false, "atomUri": "https://fedifreu.de/users/chpietsch/statuses/114315227532319224", "inReplyToAtomUri": null, "conversation": "tag:fedifreu.de,2025-04-10:objectId=6898731:objectType=Conversation", "content": "<p>Lately I've been doing more <a href=\"https://fedifreu.de/tags/SelfHosting\" class=\"mention hashtag\" rel=\"tag\">#<span>SelfHosting</span></a> again due to the current situation. Of course, I'm paying particular attention to power consumption and noise. After good experiences with the <a href=\"https://fedifreu.de/tags/ARM64\" class=\"mention hashtag\" rel=\"tag\">#<span>ARM64</span></a> architecture, even with power-hungry applications such as <a href=\"https://fedifreu.de/about\" target=\"_blank\">Mastodon</a>, I'm now using the smartphone technology for my homeservers, too.</p><p>There are <a href=\"https://fedifreu.de/tags/SBCs\" class=\"mention hashtag\" rel=\"tag\">#<span>SBCs</span></a> with more open hardware, but the <a href=\"https://fedifreu.de/tags/RaspberryPi\" class=\"mention hashtag\" rel=\"tag\">#<span>RaspberryPi</span></a> is widely available, well documented, powerful and inexpensive. And it is available with up to 16 GB of RAM.</p><p>Anyone operating a server on the Internet must install <a href=\"https://fedifreu.de/tags/security\" class=\"mention hashtag\" rel=\"tag\">#<span>security</span></a> updates quickly. However, many people forget to restart running software so that the new version runs instead of the old one. The <a href=\"https://fedifreu.de/tags/needrestart\" class=\"mention hashtag\" rel=\"tag\">#<span>needrestart</span></a> tool helps with this on Debian-based Linux systems, which unfortunately is usually not pre-installed.</p><p>On my Raspberry Pi 4, <code>needrestart</code> always runs correctly (automatically after <code>apt upgrade</code>). On my Raspberry Pi 5, however, I first had to create a configuration file as described by the main developer here:<br><a href=\"https://github.com/liske/needrestart/blob/master/README.raspberry.md\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">github.com/liske/needrestart/b</span><span class=\"invisible\">lob/master/README.raspberry.md</span></a><br>Previously, the tool <em>always</em> claimed that a reboot was necessary because it thought an outdated Linux kernel was running.</p><p>Next, I want to activate <a href=\"https://fedifreu.de/tags/LUKS\" class=\"mention hashtag\" rel=\"tag\">#<span>LUKS</span></a> hard drive encryption on both raspis. Unfortunately, this is not as easy under <a href=\"https://fedifreu.de/tags/Raspbian\" class=\"mention hashtag\" rel=\"tag\">#<span>Raspbian</span></a> or <a href=\"https://fedifreu.de/tags/RaspberryPiOS\" class=\"mention hashtag\" rel=\"tag\">#<span>RaspberryPiOS</span></a> as on other Debian systems. If you have managed this: Please let me know how you did it!</p><p><a href=\"https://fedifreu.de/tags/rpi\" class=\"mention hashtag\" rel=\"tag\">#<span>rpi</span></a> <a href=\"https://fedifreu.de/tags/rpi5\" class=\"mention hashtag\" rel=\"tag\">#<span>rpi5</span></a> <a href=\"https://fedifreu.de/tags/raspi\" class=\"mention hashtag\" rel=\"tag\">#<span>raspi</span></a> <a href=\"https://fedifreu.de/tags/raspberrypi5\" class=\"mention hashtag\" rel=\"tag\">#<span>raspberrypi5</span></a> <a href=\"https://fedifreu.de/tags/homeserver\" class=\"mention hashtag\" rel=\"tag\">#<span>homeserver</span></a> <a href=\"https://fedifreu.de/tags/encryption\" class=\"mention hashtag\" rel=\"tag\">#<span>encryption</span></a> <a href=\"https://fedifreu.de/tags/selfhost\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhost</span></a> <a href=\"https://fedifreu.de/tags/selfhosted\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosted</span></a></p>", "contentMap": { "en": "<p>Lately I've been doing more <a href=\"https://fedifreu.de/tags/SelfHosting\" class=\"mention hashtag\" rel=\"tag\">#<span>SelfHosting</span></a> again due to the current situation. Of course, I'm paying particular attention to power consumption and noise. After good experiences with the <a href=\"https://fedifreu.de/tags/ARM64\" class=\"mention hashtag\" rel=\"tag\">#<span>ARM64</span></a> architecture, even with power-hungry applications such as <a href=\"https://fedifreu.de/about\" target=\"_blank\">Mastodon</a>, I'm now using the smartphone technology for my homeservers, too.</p><p>There are <a href=\"https://fedifreu.de/tags/SBCs\" class=\"mention hashtag\" rel=\"tag\">#<span>SBCs</span></a> with more open hardware, but the <a href=\"https://fedifreu.de/tags/RaspberryPi\" class=\"mention hashtag\" rel=\"tag\">#<span>RaspberryPi</span></a> is widely available, well documented, powerful and inexpensive. And it is available with up to 16 GB of RAM.</p><p>Anyone operating a server on the Internet must install <a href=\"https://fedifreu.de/tags/security\" class=\"mention hashtag\" rel=\"tag\">#<span>security</span></a> updates quickly. However, many people forget to restart running software so that the new version runs instead of the old one. The <a href=\"https://fedifreu.de/tags/needrestart\" class=\"mention hashtag\" rel=\"tag\">#<span>needrestart</span></a> tool helps with this on Debian-based Linux systems, which unfortunately is usually not pre-installed.</p><p>On my Raspberry Pi 4, <code>needrestart</code> always runs correctly (automatically after <code>apt upgrade</code>). On my Raspberry Pi 5, however, I first had to create a configuration file as described by the main developer here:<br><a href=\"https://github.com/liske/needrestart/blob/master/README.raspberry.md\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">github.com/liske/needrestart/b</span><span class=\"invisible\">lob/master/README.raspberry.md</span></a><br>Previously, the tool <em>always</em> claimed that a reboot was necessary because it thought an outdated Linux kernel was running.</p><p>Next, I want to activate <a href=\"https://fedifreu.de/tags/LUKS\" class=\"mention hashtag\" rel=\"tag\">#<span>LUKS</span></a> hard drive encryption on both raspis. Unfortunately, this is not as easy under <a href=\"https://fedifreu.de/tags/Raspbian\" class=\"mention hashtag\" rel=\"tag\">#<span>Raspbian</span></a> or <a href=\"https://fedifreu.de/tags/RaspberryPiOS\" class=\"mention hashtag\" rel=\"tag\">#<span>RaspberryPiOS</span></a> as on other Debian systems. If you have managed this: Please let me know how you did it!</p><p><a href=\"https://fedifreu.de/tags/rpi\" class=\"mention hashtag\" rel=\"tag\">#<span>rpi</span></a> <a href=\"https://fedifreu.de/tags/rpi5\" class=\"mention hashtag\" rel=\"tag\">#<span>rpi5</span></a> <a href=\"https://fedifreu.de/tags/raspi\" class=\"mention hashtag\" rel=\"tag\">#<span>raspi</span></a> <a href=\"https://fedifreu.de/tags/raspberrypi5\" class=\"mention hashtag\" rel=\"tag\">#<span>raspberrypi5</span></a> <a href=\"https://fedifreu.de/tags/homeserver\" class=\"mention hashtag\" rel=\"tag\">#<span>homeserver</span></a> <a href=\"https://fedifreu.de/tags/encryption\" class=\"mention hashtag\" rel=\"tag\">#<span>encryption</span></a> <a href=\"https://fedifreu.de/tags/selfhost\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhost</span></a> <a href=\"https://fedifreu.de/tags/selfhosted\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosted</span></a></p>" }, "updated": "2025-04-10T20:12:29Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://fedifreu.de/tags/selfhosting", "name": "#selfhosting" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/arm64", "name": "#arm64" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/sbcs", "name": "#sbcs" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/raspberrypi", "name": "#raspberrypi" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/security", "name": "#security" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/needrestart", "name": "#needrestart" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/luks", "name": "#luks" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/raspbian", "name": "#raspbian" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/raspberrypios", "name": "#raspberrypios" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/rpi", "name": "#rpi" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/rpi5", "name": "#rpi5" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/raspi", "name": "#raspi" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/raspberrypi5", "name": "#raspberrypi5" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/homeserver", "name": "#homeserver" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/encryption", "name": "#encryption" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/selfhost", "name": "#selfhost" }, { "type": "Hashtag", "href": "https://fedifreu.de/tags/selfhosted", "name": "#selfhosted" } ], "replies": { "id": "https://fedifreu.de/users/chpietsch/statuses/114315227532319224/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://fedifreu.de/users/chpietsch/statuses/114315227532319224/replies?only_other_accounts=true&page=true", "partOf": "https://fedifreu.de/users/chpietsch/statuses/114315227532319224/replies", "items": [] } }, "likes": { "id": "https://fedifreu.de/users/chpietsch/statuses/114315227532319224/likes", "type": "Collection", "totalItems": 27 }, "shares": { "id": "https://fedifreu.de/users/chpietsch/statuses/114315227532319224/shares", "type": "Collection", "totalItems": 21 } }