--- a/README.md	Tue Jul 28 22:00:55 2026 -0500
+++ b/README.md	Mon Dec 05 23:50:22 2022 +0200
@@ -20,8 +20,7 @@
 
 Most dependencies are managed by the Cargo build system of [Rust]. You will
 only need to install the “nightly” Rust compiler and the
-[GNU Scientific Library] manually. At the time of writing this README,
-[alg_tools] also needs to be downloaded separately.
+[GNU Scientific Library] manually.
 
 1.  Install the [Rust] infrastructure (including Cargo) with [rustup].
 2.  Install a “nightly” release of the Rust compiler. With rustup, installed in
@@ -39,9 +38,6 @@
     extra `RUSTFLAGS` options to Cargo in the following steps to locate the
     library.
 
-4. Download [alg_tools] and unpack it under the same directory as this
-   package.
-
   [rustup]: https://rustup.rs
   [alg_tools]: https://tuomov.iki.fi/software/alg_tools/
   [Rust]: https://www.rust-lang.org/
@@ -90,3 +86,8 @@
 generated documentation through an ugly workaround. Unfortunately,
 `rustdoc`, akin to Rust largely itself, is stuck in 80's 7-bit gringo ASCII
 world, and does not support modern markdown features, such as mathematics.
+
+## Source repository
+
+A Mercurial repository is available; see
+https://tuomov.iki.fi/software/pointsource_algs/.