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I've recently acquired an uncalibrated Philips PM2534 (edit: the battery-backed factory calibration data was lost due to the battery running out). I'm looking into somehow getting it calibrated. However, the calibration procedure is rather involved, and requires such things as an exact 300V DC (the service manual recommends using a Fuke 5700).

Anybody know of a way to have this multimeter calibrated? I'm a hobbyist and don't really need such things as traceability and certificates.

Edit: I live in the Netherlands.

Summary: Dusk and Enjoiner Rue learn Demerzel's origin and true purpose. Tellem's plan for Gaal take a dark turn. On Terminus, Day confronts Dr. Seldon.

Air Date: September 8, 2023

As the title says, I'm looking for a Linux/macOS-compatible EPROM programmer. I'd like to be able to program parallel (E)EPROMs in the 27xxx range. The newer XGecu programmers seem to not be compatible with Linux/macOS, and the selection of TL866(II) clones is too overwhelming for me to be able to choose one.

Any suggestions?

I’ve recently switched from a self-built Lemmy without pict-rs to the standard docker image that has pict-rs included. However, I’m noticing that the amount of pictures pict-rs stores on my instance is quite high. Any ideas? Is Lemmy preemptively mirroring all images in all posts?

Sad that updating your Lemmy instance to 0.18.1 broke your post and comment scores? Here's a small SQL script to fix them:

 MERGE INTO "person_aggregates" AS "d"
 USING (SELECT "m"."id" AS "person_id"
             , coalesce("p"."post_count", 0) AS "post_count"
             , coalesce("p"."post_score", 0) AS "post_score"
             , coalesce("c"."comment_count", 0) AS "comment_count"
             , coalesce("c"."comment_score", 0) AS "comment_score"
          FROM "person" AS "m"
          LEFT JOIN (SELECT "p"."creator_id"
                          , count(distinct "p"."id") AS "post_count"
                          , sum("l"."score") AS "post_score"
                       FROM "post" AS "p"
                      INNER JOIN "post_like" AS "l"
                         ON "l"."post_id" = "p"."id"
                      WHERE NOT "p"."removed"
                        AND NOT "p"."deleted"
                      GROUP BY "p"."creator_id") AS "p"
            ON "p"."creator_id" = "m"."id"
          LEFT JOIN (SELECT "c"."creator_id"
                          , count(distinct "c"."id") AS "comment_count"
                          , sum("l"."score") AS "comment_score"
                       FROM "comment" AS "c"
                      INNER JOIN "comment_like" AS "l"
                         ON "l"."comment_id" = "c"."id"
                      WHERE NOT "c"."removed"
                        AND NOT "c"."deleted"
                      GROUP BY "c"."creator_id") AS "c"
            ON "c"."creator_id" = "m"."id"
         ORDER BY "m"."id") AS "s"
    ON "s"."person_id" = "d"."person_id"
  WHEN MATCHED AND ("d"."post_count" <> "s"."post_count" OR
                    "d"."post_score" <> "s"."post_score" OR
                    "d"."comment_count" <> "s"."comment_count" OR
                    "d"."comment_score" <> "s"."comment_score")
  THEN UPDATE
          SET "post_count" = "s"."post_count"
            , "post_score" = "s"."post_score"
            , "comment_count" = "s"."comment_count"
            , "comment_score" = "s"."comment_score";

As with all scripts that work directly on the PostgreSQL database: warranty void when connected, your kilometrage may vary, do not look into laser with remaining eye, etc.

Hi all,

I’d hereby like to announce lmmy.to, an instance-aware redirector for Lemmy that allows you to directly link people to Lemmy communities on their own instance.

As an example, try https://lmmy.to/c/lemmy@lemmy.ml.

I’ve created !lmmy_to@derp.foo to discuss it. There’s also a FAQ.

Edit: I've resolved the 500 error people were getting.

Why does lmmy.to exist?

To solve the problem of directly linking to Lemmy communities from elsewhere and not having people end up where they can't post.

How can I use it?

Say you want to direct your friends on Mastodon to your favourite Lemmy community !risa@startrek.website. Instead of linking to https://startrek.website/c/risa, you'd link to https://lmmy.to/c/risa@startrek.website. Anyone visiting your link gets redirected to their home server.

Note that, as a security measure, you can only link to instances that Fediverse Observer knows about; lmmy.to pulls a list of known Lemmy servers every hour or so and only redirects to those servers.

Do you own Lemmy?

No-one owns Lemmy; that's the nice thing about having a federated network. All links to lmmy.to contain enough information to manually rewrite them to point to a specific Lemmy server, so having a web server at the other end to do so automatically is just a convenience.

Indeed, if you're authoring a Lemmy frontend or browser extension, feel free to rewrite links to lmmy.to automatically!

Are you snooping on us? How can I tell what info you're gathering?

Well, the source is here.

How can I help?

I'm looking for someone to make the landing page to actually look nice, since I don't have the skills to make it so.

Hi all,

I’ve been observing and participating in this community for about a week now. I’m liking it so far, but one thing I’m really missing is a way to link to other Lemmy content in a way that’s instance-aware.

For example, if I were to want to link to !risa@startrek.website, I’d link to https://startrek.website/c/risa. But then I’d end up at a Lemmy instance where I don’t have an account; I’d really prefer to be redirected to https://derp.foo/c/risa@startrek.website.

So here’s my proposal: create a central Lemmy redirection service where people can set their instance (in a cookie). The idea would be that people can link to, say, https://example.com/c/risa@startrek.website, and be ensured us lemmings end up on an instance where we can actually post.

Linking to posts and comments should ideally be part of this as well but whould involve a little more work.