diff --git a/.github/workflows/tests-workflow.yml b/.github/workflows/tests-workflow.yml
new file mode 100644
index 0000000..70a9145
--- /dev/null
+++ b/.github/workflows/tests-workflow.yml
@@ -0,0 +1,47 @@
+name: qdate tests and dialyzer
+on: push
+
+jobs:
+  linux:
+    name: OTP ${{ matrix.otp_version }}
+    runs-on: ${{ matrix.os }}
+    continue-on-error: true
+
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-22.04
+            otp_version: '27.x'
+            rebar3_version: "3.24.0"
+          - os: ubuntu-22.04
+            otp_version: '27.x'
+            rebar3_version: "3.23.0"
+          - os: ubuntu-22.04
+            otp_version: '26.x'
+            rebar3_version: "3.22.1"
+          - os: ubuntu-22.04
+            otp_version: '25.x'
+            rebar3_version: "3.22.1"
+          - os: ubuntu-22.04
+            otp_version: '24.x'
+            rebar3_version: "3.22.1"
+          - os: ubuntu-20.04
+            otp_version: '23.x'
+            rebar3_version: "3.19.0"
+
+    steps:
+      - name: Install OTP ${{matrix.otp_version}}
+        uses: erlef/setup-beam@v1
+        with:
+          version-type: loose
+          otp-version: ${{ matrix.otp_version}}
+          rebar3-version: ${{ matrix.rebar3_version}}
+
+      - name: Checkout qdate
+        uses: actions/checkout@v4
+
+      - name: Run Tests
+        run: make test
+
+      - name: Run Dialyzer
+        run: make dialyzer
diff --git a/.gitignore b/.gitignore
index 253f03c..6ff84d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ ebin/
 .eunit/
 .idea/
 _build
+doc/
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 5de773f..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-language: erlang
-script: "make test"
-otp_release:
-  - 23.0
-  - 22.3
-  - 21.3
-  - 20.3
-before_script: "sudo apt-get --yes --force-yes install libpam-runtime python-software-properties software-properties-common"
diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
index 18f9a5f..f44c11c 100644
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,18 @@
+## 0.7.3
+
+* Remove the `?else` macro.
+
+## 0.7.2
+
+* Update the error message when qdate is not started with some better instructions.
+* Some minor updates for hex.pm
+* Removed the `erlnow()` warning
+* Fix some typos in the documentation
+* Update the makefile to use [rebar3.mk](https://rebar3.mk)
+* Skipped 0.7.1 only because there was a partially tagged 0.7.1 for a while,
+  but was never published to hex. Just to ensure upgrades are easier, I just skipped
+  a proper 0.7.1 release
+
 ## 0.7.0
 
 * Re-introduce the qdate server for storing qdate timezones, formats, and parsers,
@@ -22,7 +37,7 @@
   just the opposite of `beginning_X`)
 * Add `between/[2,3,5]` functions for computing whether a date/time is between
   two others.
-* Update to rebar3 and add hex compatability. (@Licenser)
+* Update to rebar3 and add hex compatibility. (@Licenser)
 * Properly add dependent apps to .app.src (@Licenser)
 * Add an optional "relative date/time parser".
 * Fix: Ensure `get_timezone()` returns the default timezone (from config) if it
diff --git a/LICENSE b/LICENSE.md
similarity index 100%
rename from LICENSE
rename to LICENSE.md
diff --git a/Makefile b/Makefile
index 08d6350..de4d762 100644
--- a/Makefile
+++ b/Makefile
@@ -1,33 +1,41 @@
-REBAR_PATH = $(shell which rebar3)
-
-ifeq ($(REBAR_PATH),)
-REBAR = $(shell pwd)/rebar3
-else
-REBAR = rebar3
-endif
-
-
 all: compile
 
-compile:
+# Check if rebar3.mk exists, and if not, download it
+ifeq ("$(wildcard rebar3.mk)","")
+$(shell curl -O https://raw.githubusercontent.com/choptastic/rebar3.mk/master/rebar3.mk)
+endif
+
+# rebar3.mk adds a new rebar3 rule to your Makefile
+# (see https://github.com/choptastic/rebar3.mk) for full info
+include rebar3.mk
+
+compile: rebar3
 	$(REBAR) compile
 
-update:
+update: rebar3
 	$(REBAR) update
 
-test: compile
-	$(REBAR) eunit
+test:
+	EUNIT=1 $(REBAR) compile
+	EUNIT=1 $(REBAR) eunit
 
 dialyzer: compile
-	$(REBAR) dialyzer
+	DIALYZER=1 $(REBAR) dialyzer
 
-travis: test dialyzer
+dev:
+	mkdir -p _checkouts
+	cd _checkouts; git clone https://github.com/choptastic/qdate_localtime
 
-run:
+
+run: rebar3
 	$(REBAR) shell
 
-publish:
-	$(REBAR) as pkg upgrade
-	$(REBAR) as pkg hex publish
-	$(REBAR) upgrade
+push_tags:
+	git push --tag
+
+pull_tags:
+	git pull --tag
+
+publish: rebar3 pull_tags
+	$(REBAR) hex publish
 
diff --git a/README.markdown b/README.md
similarity index 98%
rename from README.markdown
rename to README.md
index d12f64d..a462a9b 100644
--- a/README.markdown
+++ b/README.md
@@ -1,6 +1,6 @@
 # qdate - Erlang Date and Timezone Library
 
-[![Build Status](https://travis-ci.org/choptastic/qdate.png?branch=master)](https://travis-ci.org/choptastic/qdate)
+[![qdate tests and dialyzer](https://github.com/choptastic/qdate/actions/workflows/tests-workflow.yml/badge.svg)](https://github.com/choptastic/qdate/actions/workflows/tests-workflow.yml)
 
 ## Purpose
 
@@ -107,7 +107,7 @@ will infer the timezone in the following order.
 
 #### Disambiguating Ambiguous Timezone Conversions
 
-Sometimes, when youre converting a datetime from one timezone to another, there
+Sometimes, when you're converting a datetime from one timezone to another, there
 are potentially two different results if the conversion happens to land on in a
 timezone that's in the middle of a Daylight Saving conversion.  For example,
 converting "11-Nov-2013 1:00:am" in "America/New York" to "GMT" could be both
@@ -536,7 +536,7 @@ qdate:between(qdate:add_minutes(-15), Date, qdate:add_minutes(15)).
 
 %% But, you don't have to: if that's a common format you use in your
 %% application, you can register your format with the `qdate` server, and then
-%% easiy refer to that format by its key.
+%% easily refer to that format by its key.
 
 %% So let's take that format and register it
 16> qdate:register_format(longdate, "l, F jS, Y g:i A T").
@@ -720,7 +720,7 @@ the week" calculation.  This has three forms, specifically:
      7=Sunday).
    + `beginning_week(DayOfWeek, Date)` - Calculates the beginning of the week
      based on the provided `DayOfWeek`. Valid values for DayOfWeek are the
-     integers 1-7 or the atom verions of the days of the week. Specifically:
+     integers 1-7 or the atom versions of the days of the week. Specifically:
 	 
      * Monday: `1 | monday | mon`
      * Tuesday: `2 | tuesday | tue`
diff --git a/rebar.config b/rebar.config
index de7ef3f..9dc3672 100644
--- a/rebar.config
+++ b/rebar.config
@@ -10,5 +10,15 @@
 {deps,
  [
   erlware_commons,
-  {qdate_localtime, "1.2.0"}
+  {qdate_localtime, "~> 1.2.0"}
  ]}.
+
+{project_plugins, [rebar3_ex_doc]}.
+
+{hex, [{doc, ex_doc}]}.
+
+{ex_doc, [
+          {source_url, <<"https://github.com/choptastic/qdate">>},
+          {extras, [<<"README.md">>, <<"LICENSE.md">>]},
+          {main, <<"readme">>}]}.
+
diff --git a/rebar.config.script b/rebar.config.script
index e57d8e3..61542d6 100644
--- a/rebar.config.script
+++ b/rebar.config.script
@@ -9,7 +9,7 @@ case erlang:function_exported(rebar3, main, 1) of
         %% Rebuild deps, possibly including those that have been moved to
         %% profiles
         [{deps, [
-            {erlware_commons, "", {git, "git://github.com/erlware/erlware_commons", {tag, "v1.5.0"}}}, %% this is the version of erlware_commons that works until erlware tags a new version
-            {qdate_localtime, "", {git, "git://github.com/choptastic/qdate_localtime", {tag, "1.1.0"}}}
+            {erlware_commons, "", {git, "https://github.com/erlware/erlware_commons", {tag, "v1.5.0"}}}, %% this is the version of erlware_commons that works until erlware tags a new version
+            {qdate_localtime, "", {git, "https://github.com/choptastic/qdate_localtime", {tag, "1.1.0"}}}
         ]} | lists:keydelete(deps, 1, CONFIG)]
 end.
diff --git a/rebar.lock b/rebar.lock
index 7b02d75..30b2fae 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,14 +1,14 @@
 {"1.2.0",
 [{<<"cf">>,{pkg,<<"cf">>,<<"0.3.1">>},1},
- {<<"erlware_commons">>,{pkg,<<"erlware_commons">>,<<"1.5.0">>},0},
- {<<"qdate_localtime">>,{pkg,<<"qdate_localtime">>,<<"1.1.0">>},0}]}.
+ {<<"erlware_commons">>,{pkg,<<"erlware_commons">>,<<"1.6.0">>},0},
+ {<<"qdate_localtime">>,{pkg,<<"qdate_localtime">>,<<"1.2.1">>},0}]}.
 [
 {pkg_hash,[
  {<<"cf">>, <<"5CB902239476E141EA70A740340233782D363A31EEA8AD37049561542E6CD641">>},
- {<<"erlware_commons">>, <<"918C56D8FB3BE52AF0DF138ED6E0755E764AD4467CD7D025761F7D0A17D3DEC1">>},
- {<<"qdate_localtime">>, <<"5F6C3ACF10ECC5A7E2EFA3DCD2C863102B962188DBD9E086EC01D29FE029DA29">>}]},
+ {<<"erlware_commons">>, <<"E0DA62F91E65DEFAE28BB450DDC3C24E85ECB99B926F857CDC6ED8E7DD7076B4">>},
+ {<<"qdate_localtime">>, <<"72E1034DC6B7FEE8F588281EDDD0BD0DC5260005D758052F50634D265D382C18">>}]},
 {pkg_hash_ext,[
  {<<"cf">>, <<"315E8D447D3A4B02BCDBFA397AD03BBB988A6E0AA6F44D3ADD0F4E3C3BF97672">>},
- {<<"erlware_commons">>, <<"3E7C6FB2BA4C29B0DD5DFE9D031B66449E2088ECEC1A81465BD9FDE05ED7D0DB">>},
- {<<"qdate_localtime">>, <<"91928E066DA6BCC745FF18B7C368347457CAF9250AD00950E9DA18E129D49EC5">>}]}
+ {<<"erlware_commons">>, <<"B57C299C39A2992A8C413F9D2C1B8A20061310FB4432B0EEE5E4C4DF7AAA0AA3">>},
+ {<<"qdate_localtime">>, <<"1109958D205C65C595C8C5694CB83EBAF2DBE770CF902E4DCE8AFB2C4123764D">>}]}
 ].
diff --git a/rebar3 b/rebar3
deleted file mode 100755
index 6f0ccfa..0000000
Binary files a/rebar3 and /dev/null differ
diff --git a/src/qdate.app.src b/src/qdate.app.src
index 7b85ef4..2479739 100644
--- a/src/qdate.app.src
+++ b/src/qdate.app.src
@@ -1,17 +1,16 @@
 {application, qdate,
  [
   {description, "Simple Date and Timezone handling for Erlang"},
-  {vsn, "0.7.0"},
+  {vsn, git},
   {registered, []},
   {applications, [
                   kernel,
+                  stdlib,
                   qdate_localtime,
-                  erlware_commons,
-                  stdlib
+                  erlware_commons
                  ]},
   {modules, [qdate, qdate_srv, qdate_sup, qdate_app]},
   {env, []},
-  {maintainers, ["Jesse Gumm"]},
   {licenses, ["MIT"]},
   {mod, {qdate_app, []}},
   {links, [{"Github", "https://github.com/choptastic/qdate"}]}
diff --git a/src/qdate.erl b/src/qdate.erl
index f11c00a..7027b27 100644
--- a/src/qdate.erl
+++ b/src/qdate.erl
@@ -1,5 +1,5 @@
 % vim: ts=4 sw=4 et
-% Copyright (c) 2013-2019 Jesse Gumm
+% Copyright (c) 2013-2023 Jesse Gumm
 % See LICENSE for licensing information.
 %
 -module(qdate).
@@ -145,6 +145,7 @@
                     {{integer(), integer(), integer()}, {integer(), integer(), integer(), integer()}}.
 -type erlnow() :: {integer(), integer(), integer()}.
 -type binary_or_string() :: binary() | string().
+-type disambiguate() :: prefer_standard | prefer_daylight | both.
 
 %% erlang:get_stacktrace/0 is deprecated in OTP 21
 -ifndef(OTP_RELEASE).
@@ -161,7 +162,6 @@
 
 -define(DETERMINE_TZ, determine_timezone()).
 -define(DEFAULT_DISAMBIG, prefer_standard).
--define(else, true).
 
 
 start() ->
@@ -179,7 +179,7 @@ to_string(Format, Date) ->
 to_string(Format, ToTZ, Date) ->
     to_string(Format, ToTZ, ?DEFAULT_DISAMBIG, Date).
 
--spec to_string(Format :: any(), ToTZ :: any(), Disambiguate :: atom(), Date :: qdate()) -> binary_or_string() | {ambiguous, binary_or_string() , binary_or_string()}.
+-spec to_string(Format :: any(), ToTZ :: any(), Disambiguate :: disambiguate(), Date :: qdate()) -> binary_or_string() | {ambiguous, binary_or_string() , binary_or_string()}.
 to_string(FormatKey, ToTZ, Disambiguate, Date) when is_atom(FormatKey) orelse is_tuple(FormatKey) ->
     Format = case qdate_srv:get_format(FormatKey) of
         undefined -> throw({undefined_format_key,FormatKey});
@@ -303,7 +303,7 @@ to_date(RawDate) ->
 to_date(ToTZ, RawDate) ->
     to_date(ToTZ, ?DEFAULT_DISAMBIG, RawDate).
 
--spec to_date(ToTZ :: any(), Disambiguate :: atom(), RawDate :: any()) -> {ambiguous, datetime(), datetime()} | datetime().
+-spec to_date(ToTZ :: any(), Disambiguate :: disambiguate(), RawDate :: any()) -> {ambiguous, datetime(), datetime()} | datetime().
 to_date(ToTZ, Disambiguate, RawDate) when is_binary(RawDate) ->
     to_date(ToTZ, Disambiguate, binary_to_list(RawDate));
 to_date(ToTZ, Disambiguate, RawDate) when is_binary(ToTZ) ->
@@ -361,7 +361,7 @@ get_deterministic_datetime() ->
 to_unixtime(Date) ->
     to_unixtime(?DEFAULT_DISAMBIG, Date).
 
--spec to_unixtime(Disamb :: atom(), qdate()) -> integer() | {ambiguous, integer(), integer()}.
+-spec to_unixtime(Disamb :: disambiguate(), qdate()) -> {ambiguous, integer(), integer()} | integer().
 to_unixtime(_, Unixtime) when is_integer(Unixtime) ->
     Unixtime;
 to_unixtime(_, {MegaSecs,Secs,_}) when is_integer(MegaSecs), is_integer(Secs) ->
@@ -383,12 +383,12 @@ unixtime() ->
 to_now(Date) ->
     to_now(?DEFAULT_DISAMBIG, Date).
 
--spec to_now(Disamb :: atom(), qdate()) -> {integer(), integer(), integer()} | {ambiguous, tuple(), tuple()}.
+-spec to_now(Disamb :: disambiguate(), qdate()) -> erlnow() | {ambiguous, erlnow(), erlnow()}.
 to_now(_, Now = {_,_,_}) ->
     Now;
 to_now(Disamb, ToParse) ->
     case to_unixtime(Disamb, ToParse) of
-        {ambiguous, Standard, Daylight} ->
+        {ambiguous, Standard, Daylight} when is_integer(Standard), is_integer(Daylight) ->
             {ambiguous, 
                 unixtime_to_now(Standard),
                 unixtime_to_now(Daylight)};
@@ -1064,6 +1064,8 @@ determine_timezone() ->
 %% If FromTZ is an integer, then it's an integer that represents the number of minutes
 %% relative to GMT. So we convert the date to GMT based on that number, then we can
 %% do the other timezone conversion.
+-spec date_tz_to_tz(Date :: datetime(), Disambiguate :: disambiguate(), FromTZ :: any(), ToTZ :: any()) ->
+    datetime() | {ambiguous, datetime(), datetime()}.
 date_tz_to_tz(Date, Disambiguate, FromTZ, ToTZ) when is_integer(FromTZ) ->
     NewDate = localtime:adjust_datetime(Date, FromTZ),
     date_tz_to_tz(NewDate, Disambiguate, "GMT", ToTZ);
@@ -1085,7 +1087,7 @@ date_tz_to_tz_both(Date, FromTZ, ToTZ) ->
     if
         Standard=:=Daylight ->
             Standard;
-        ?else -> 
+        true -> 
             {ambiguous, Standard, Daylight}
     end.           
 
@@ -1204,6 +1206,8 @@ flooring(N) when N < 0 ->
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  TESTS  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
+-ifdef(EUNIT).
+
 -include_lib("eunit/include/eunit.hrl").
 
 %% emulates as if a forum-type website has a Site tz, and a user-specified tz
@@ -1527,3 +1531,5 @@ microsoft_parser(_) ->
 
 stop_test(_) ->
     ok.
+
+-endif.
diff --git a/src/qdate_srv.erl b/src/qdate_srv.erl
index d09b782..731b8b1 100644
--- a/src/qdate_srv.erl
+++ b/src/qdate_srv.erl
@@ -152,8 +152,26 @@ unset_env(Key) ->
     gen_server:call(?SERVER, {unset, ?KEY(Key)}).
 
 get_all_env(FilterTag) ->
-    All = ets:tab2list(?TABLE),
-    [{Key, V} || {{?BASETAG, {Tag, Key}}, V} <- All, Tag==FilterTag].
+    try ets:tab2list(?TABLE) of
+        All ->
+            [{Key, V} || {{?BASETAG, {Tag, Key}}, V} <- All, Tag==FilterTag]
+    catch
+        error:badarg:S ->
+            Msg = maybe_start_msg(),
+            logger:error(Msg),
+          
+            error({qdate_get_all_env_failed, #{
+                original_error => {error, badarg, S}
+            }})
+    end.
+
+maybe_start_msg() ->
+    "Attempting to read qdate environment failed (qdate_srv:get_all_env/1).\n"
+    "qdate may not have been started properly.\n"
+    "Please ensure qdate is started properly by either:\n"
+    "* Putting qdate in the 'applications' key in your .app.src or .app file, or\n"
+    "* Starting it manually with application:ensure_all_started(qdate) or qdate:start().".
+
 
 %% ProcDic Vars