;doc: restart Developer FAQ

doc/DEVFAQ.md

@@ -0,0 +1,53 @@
+# Developer FAQ
+
+<!-- toc -->
+
+This is just getting started. It will absorb some of the other [Developer docs](dev.md).
+
+## Developing hledger
+
+### How do I get/build the hledger source ?
+
+```cli
+$ git clone https://github.com/simonmichael/hledger
+$ stack build
+```
+You can specify `hledger`, `hledger-ui` or `hledger-web` as an argument to build just that executable.
+Please see [Install > Build from source](install.md#build-from-source) for more details and other build methods.
+
+### What other repos are there ?
+
+There are three official repos:
+- <https://github.com/simonmichael/hledger> - the main hledger repo, for hledger, hledger-ui and hledger-web. Shortcut url: <https://code.hledger.org>
+- <https://github.com/simonmichael/hledger_site> - the hledger.org website
+- <https://github.com/simonmichael/hledger_finance> - the hledger project's financial ledger
+
+And third-party add-ons and tools (hledger-iadd, hledger-utils, full fledged hledger, hledger-flow, etc.) have their own repos.
+
+### How do I run a build in place ?
+
+After building with stack,
+```cli
+$ stack exec -- hledger [ARGS]    # or hledger-ui, hledger-web
+```
+
+Or after building with cabal,
+```cli
+$ cabal exec -- hledger [ARGS]
+```
+
+### How do I install a build in $PATH ?
+
+```cli
+$ stack install
+```
+This installs the hledger executables to `~/.local/bin`. You should have this directory configured in $PATH.
+Or you can install to another directory with `--local-bin-path`.
+It builds the executables first if needed; see [Install > Build from source](install.md#build-from-source) for more about building.
+You can specify `hledger`, `hledger-ui` or `hledger-web` as an argument to build/install just that executable.
+
+If you use cabal, it has a similar command; the argument is required.
+It will install executables to `~/.cabal/bin`:
+```cli
+$ cabal install all:exes
+```

doc/dev.md

@@ -7,7 +7,9 @@ workflows of the hledger project - "the machine that makes the machine".
 These mostly are kept in doc/ in the main hledger repo,
 and then symlinked into the hledger_site repo for rendering on hledger.org.
 
-- [README](dev-README.md)
+- [Contributor Quick Start](CONTRIBUTING.md)
+- [Developer FAQ](DEVFAQ.md)
+- [Project README](dev-README.md)
 - [ROADMAP](ROADMAP.md)
 <!-- - [TODO](TODO.md) -->
 - [ACHIEVEMENTS](ACHIEVEMENTS.md)
@@ -16,7 +18,6 @@ and then symlinked into the hledger_site repo for rendering on hledger.org.
 - [CLIMATE](CLIMATE.md)
 - [CODE](CODE.md)
 - [COMMITS](COMMITS.md)
-- [CONTRIBUTING](CONTRIBUTING.md)
 - [CREDITS](CREDITS.md)
 - [DECISIONS](DECISIONS.md)
 - [DEVWORKFLOWS](DEVWORKFLOWS.md)