Update INSTALL.md to reflect latest status

INSTALL.md

@@ -1,23 +1,11 @@
-Vervis is still in early development. These instructions may be incomplete
-and/or slightly outdated. At the time of writing, you can get a running Vervis
-instance if you follow the steps below.
+Vervis is still in early development and the build process gets updates once in
+a while, but this file tries to keep up and list the latest instructions for
+running a Vervis instance.
 
-Check the version of OpenSSL installed on your system. For example:
+At the time of writing, you can get a running Vervis instance if you follow the
+steps below.
 
-    $ apt show openssl
-
-Currently Vervis is using a slightly old software configuration, and until I
-fix that, it doesn't build with OpenSSL 1.1 and needs the older 1.0 or 1.0.1
-version. If your distro has 1.1, see if you can grab 1.0 or 1.0.1 in some way,
-either through the distro package or by downloading OpenSSL manually from its
-website, or some alternative package manager such as GNU Guix.
-
-UPDATE: If you proceed with the steps below and `stack build` throws an error
-while building `HsOpenSSL`, there's a chance you can still use OpenSSL 1.1
-successfully if you run these commands:
-
-    $ stack build HsOpenSSL --flag HsOpenSSL:-fast-bignum
-    $ stack build
+# (1) System libraries
 
 Install dependency library development packages. It's very likely you already
 have them all installed, and if you're missing some, the build process will
@@ -27,14 +15,18 @@ building, and let me know.
 
 - PostgreSQL client library
 - ZLib
+- libssl
 
 On Debian based distros, installation can be done like this:
 
-    $ sudo apt install libpq-dev zlib1g-dev
+    $ sudo apt install libpq-dev zlib1g-dev libssl-dev
+
+# (2) The Stack build tool
 
 Install stack. To install stack, go to its [website](https://haskellstack.org)
-and follow the instructions.  If you have some old version, such as one
-installed from FPComplete's old debian repo, you may need to upgrade it.
+and follow the instructions.
+
+# (3) Version control systems Darcs and Git
 
 Install Darcs. You can grab it from your distro, e.g.:
 
@@ -45,45 +37,18 @@ can install it from a distro package too, e.g.:
 
     $ sudo apt install git
 
+# (4) The Vervis source code
+
 Clone the Vervis repo:
 
     $ darcs clone https://dev.angeley.es/s/fr33domlover/r/vervis
     $ cd vervis
 
-Install GHC. Unless you prefer to use a distro package or PPA or some other
-source, the easiest way is to install via stack:
+Clone dependency libraries:
 
-    $ stack setup
+    $ ./clone-deps.sh
 
-Some of the dependency libraries need to be manually downloaded. Either because
-I've written them and haven't released yet, or because they have unreleased
-changes, or because I'm using a patched version of some library and the patch
-hasn't found its way upstream.
-
-In the `stack.yaml` file, under the `packages` field, there is a list of such
-libraries. While `stack` supports fetching dependencies from Git repositories,
-it doesn't support Darcs (if that changes and I haven't noticed, let me know!),
-so we need to download them by ourselves. A line in the `packages` list that
-looks like this needs manual download:
-
-`  - '../some-library-name'`
-
-These details change often because of all the unreleased libraries and patches,
-so until there are sane releases for everything, the instructions here aren't
-always up to date. Basically it works like this:
-
-- Those extra repos should be found at the
-  [Vervis project page](https://dev.angeley.es/s/fr33domlover/p/vervis)
-- If something is missing there, try my
-  [Darcs Hub page](https://hub.darcs.net/fr33domlover)
-- Use `darcs clone` to grab the library source code
-
-As of May 24, 2018, you can grab these libraries by simply running the
-[`clone-deps.sh`](./clone-deps.sh) script.
-
-Update `stack.yaml` to specify the paths in the `packages` section if needed:
-
-    $ vim stack.yml
+# (5) Configuration and database
 
 Generate a new SSH key with a blank password:
 
@@ -118,10 +83,26 @@ settings.
     $ cp config/settings-default.yaml config/settings.yml
     $ vim config/settings.yml
 
-Build.
+# (6) GHC Haskell compiler
+
+`stack` can automatically install the correct GHC version for you, in an
+isolated location that doesn't conflict with any system packages. Unless you
+have a specific reason to get GHC in some other way, getting it through `stack`
+is recommended.
+
+If you'd like to install GHC manually (from a distro package, from a PPA,
+etc.), this is the time to do so. And I trust you to arrange things such that
+`stack` uses your manually download GHC.  Otherwise, simply proceed to the next
+step.
+
+# (7) Build Vervis
+
+Build. This will also automatically install GHC.
 
     $ stack build
 
+# (8) Development and deployment
+
 For convenience, at least on actual deployments, you may wish to run the Vervis
 SSH server on port 22, so that people don't have to specify a custom port. For
 that to work, the user that runs the Vervis server needs to get permission to
@@ -141,3 +122,7 @@ Browse to `http://localhost:3000` and have fun!
 `yesod devel` is another way to run the application, useful for rapid
 development, but I haven't been using it and I'm not sure it works, possibly I
 broke something along the way. But feel free to try!
+
+I have a little script for deploying Vervis on my server. I just haven't
+published it yet and haven't explained how it works. If you're interested, ask
+me about it, and it will motivate me to write about it sooner :)