Update the nightlies doc to mention repo.scala-lang.org

Author: Gedochao

_overviews/core/nightlies.md

@@ -10,27 +10,42 @@ Here's how to find and use these versions.
 
 ## Scala 3
 
-Scala 3 nightly versions are published to Maven Central. If you know the full version number of the nightly you want to use, you can use it just like any other Scala 3 version.
+Scala 3 nightly versions are published to [https://repo.scala-lang.org](https://repo.scala-lang.org). Historically, they used to be published to Maven Central. Old nightly versions of Scala 3 (all the way until `3.8.0-RC1-bin-20250822-658c8bd-NIGHTLY` in August 2025) are still available there. 
+
+If you know the full version number of the nightly you want to use, you can use it just like any other Scala 3 version.
 
 One quick way to get that version number is to visit [https://dotty.epfl.ch](https://dotty.epfl.ch) and look in the upper left corner.
 
-Another way is to scrape Maven Central, as shown in this script: [https://raw.githubusercontent.com/VirtusLab/community-build3/master/scripts/lastVersionNightly.sc](https://raw.githubusercontent.com/VirtusLab/community-build3/master/scripts/lastVersionNightly.sc)
+Another way is to scrape the artifactory, as shown in this script: [https://raw.githubusercontent.com/VirtusLab/community-build3/master/scripts/lastVersionNightly.sc](https://raw.githubusercontent.com/VirtusLab/community-build3/master/scripts/lastVersionNightly.sc)
+
+A third way is to use [scala-cli](https://scala-cli.virtuslab.org), as follows. 
 
-A third way is to use [scala-cli](https://scala-cli.virtuslab.org), as follows. (Since Scala 3.5.0, the `scala` command runs `scala-cli`.)
+Note 1: Since Scala 3.5.0, the `scala` command in a Scala installation runs `scala-cli`.
 
-### scala-cli
+Note 2: The new artifactory is supported since Scala CLI v1.9.0 onwards (or `scala` installed with Scala 3.7.3 or newer).
+
+### Scala CLI
 
 You can run nightlies with commands such as:
 
-    scala-cli -S 3.nightly
-    scala-cli -S 3.3.nightly
+    scala-cli -e 'println("Hello") -S 3.nightly
+    scala-cli -e 'println("Hello") -S 3.3.nightly
 
 The default command is `repl`, but all the other scala-cli subcommands such as `compile` and `run` work, too. It also works with `//>` directives in your script itself, for example:
 
     //> using scala 3.nightly
 
 See this [scala-cli doc page](https://scala-cli.virtuslab.org/docs/commands/compile#scala-nightlies) for details.
 
+### SBT
+
+To use recent nightlies with SBT, adding the appropriate resolver to the build configuration is necessary.
+
+    ThisBuild / scalaVersion := "3.8.0-RC1-bin-20250916-eb1bb73-NIGHTLY"
+    ThisBuild / resolvers += Resolver.scalaNightlyRepository
+
+Note that for older nightlies (3.8.0-RC1-bin-20250822-658c8bd-NIGHTLY and before) no such change is necessary, as they were being published to Maven Central. 
+
 ## Scala 2.13 or 2.12
 
 We informally refer to Scala 2 “nightly” versions, but technically it's a misnomer. A so-called “nightly” is built for every merged PR.