diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
deleted file mode 100644
index 510c321..0000000
--- a/.github/workflows/main.yml
+++ /dev/null
@@ -1,77 +0,0 @@
-on: push
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Build packages for linux/arm64 platform
-        run: |
-
-          # Enable an execution of different multi-architecture containers by QEMU
-          sudo apt-get update -y
-          sudo apt-get install -y qemu qemu-user-static
-          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
-
-          # Build packages on aarch64 architecture
-          docker run \
-            -e DEBIAN_FRONTEND=noninteractive \
-            --rm \
-            --tty \
-            --volume "${PWD}/artifacts:/artifacts" \
-            --volume "${GITHUB_WORKSPACE}:${GITHUB_WORKSPACE}" \
-            --workdir "${GITHUB_WORKSPACE}" \
-            arm64v8/ubuntu:22.04 \
-            /bin/bash -c \
-            "apt-get update && \
-            apt-get -qq install -y build-essential gem rpm ruby-full && \
-            gem install fpm package_cloud && \
-            make deb && \
-            make rpm && \
-            cp build/deb/*.deb /artifacts && \
-            cp build/rpm/*.rpm /artifacts && \
-            rm -rf build"
-
-      - name: Build packages for linux/amd64 platform
-        run: |
-          sudo apt-get install -y rpm
-          sudo gem install fpm package_cloud
-          make deb
-          make rpm
-          sudo cp build/deb/*.deb ${PWD}/artifacts
-          sudo cp build/rpm/*.rpm ${PWD}/artifacts
-
-      - name: Deploy
-        if: ${{ github.ref == 'refs/heads/main' }}
-        run: |
-          PACKAGECLOUD_REPO="cs50/repo"
-
-          # Deploy deb to ubuntu repos
-          UBUNTU_REPOS=( xenial yakkety zesty artful bionic cosmic disco eoan focal groovy hirsute impish jammy kinetic lunar noble )
-          for repo in "${UBUNTU_REPOS[@]}"; do
-            package_cloud push "$PACKAGECLOUD_REPO"/ubuntu/"$repo" ${PWD}/artifacts/*.deb
-          done
-
-          # Deploy rpm to fedora repos
-          for repo in $(seq 28 40); do
-            package_cloud push "$PACKAGECLOUD_REPO"/fedora/"$repo" ${PWD}/artifacts/*.rpm
-          done
-        env:
-          PACKAGECLOUD_TOKEN: ${{ secrets.PACKAGECLOUD_TOKEN }}
-
-      - name: Extract version from Makefile
-        id: make_version
-        run: |
-          echo ::set-output name=version::$(make version)
-
-      - name: Create Release
-        if: ${{ github.ref == 'refs/heads/main' }}
-        uses: actions/github-script@v7
-        with:
-          github-token: ${{ github.token }}
-          script: |
-            github.rest.repos.createRelease({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              tag_name: "v${{ steps.make_version.outputs.version }}",
-              tag_commitish: "${{ github.sha }}"
-            })
diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 850f7e0..0000000
--- a/.gitignore
+++ /dev/null
@@ -1,13 +0,0 @@
-.*
-!.github
-!.gitignore
-!.travis.yml
-build/
-debian/changelog
-debian/docs/
-debian/files
-debian/libcs50
-debian/*.log
-hackerrank/
-libcs50-*
-libcs50_*
diff --git a/LICENSE b/LICENSE
deleted file mode 100644
index f288702..0000000
--- a/LICENSE
+++ /dev/null
@@ -1,674 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
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-software and other kinds of works.
-
-  The licenses for most software and other practical works are designed
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-the GNU General Public License is intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.  We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors.  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
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-you grant is automatically extended to all recipients of the covered
-work and works based on it.
-
-  A patent license is "discriminatory" if it does not include within
-the scope of its coverage, prohibits the exercise of, or is
-conditioned on the non-exercise of one or more of the rights that are
-specifically granted under this License.  You may not convey a covered
-work if you are a party to an arrangement with a third party that is
-in the business of distributing software, under which you make payment
-to the third party based on the extent of your activity of conveying
-the work, and under which the third party grants, to any of the
-parties who would receive the covered work from you, a discriminatory
-patent license (a) in connection with copies of the covered work
-conveyed by you (or copies made from those copies), or (b) primarily
-for and in connection with specific products or compilations that
-contain the covered work, unless you entered into that arrangement,
-or that patent license was granted, prior to 28 March 2007.
-
-  Nothing in this License shall be construed as excluding or limiting
-any implied license or other defenses to infringement that may
-otherwise be available to you under applicable patent law.
-
-  12. No Surrender of Others' Freedom.
-
-  If conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
-  13. Use with the GNU Affero General Public License.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU Affero General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the special requirements of the GNU Affero General Public License,
-section 13, concerning interaction through a network will apply to the
-combination as such.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/Makefile b/Makefile
deleted file mode 100644
index 1468c06..0000000
--- a/Makefile
+++ /dev/null
@@ -1,147 +0,0 @@
-VERSION := 11.0.3
-MAJOR_VERSION := $(shell echo $(VERSION) | cut -d'.' -f1)
-
-# installation directory (/usr/local by default)
-DESTDIR ?= /usr/local
-MANDIR ?= share/man/man3
-
-SRC := src/cs50.c
-INCLUDE := src/cs50.h
-MANS := $(wildcard docs/*.3.gz)
-
-CFLAGS=-Wall -Wextra -Werror -pedantic -std=c11
-BASENAME=libcs50
-LIB_STATIC=$(BASENAME).a
-LIB_OBJ=$(BASENAME).o
-
-OS := $(shell uname)
-
-# Linux
-ifeq ($(OS),Linux)
-	LIB_BASE := $(BASENAME).so
-	LIB_MAJOR := $(BASENAME).so.$(MAJOR_VERSION)
-	LIB_VERSION := $(BASENAME).so.$(VERSION)
-	LINKER_FLAGS := -Wl,-soname,$(LIB_MAJOR)
-# Mac
-else ifeq ($(OS),Darwin)
-	LIB_BASE := $(BASENAME).dylib
-	LIB_MAJOR := $(BASENAME)-$(MAJOR_VERSION).dylib
-	LIB_VERSION := $(BASENAME)-$(VERSION).dylib
-	LINKER_FLAGS := -Wl,-install_name,$(LIB_VERSION)
-endif
-
-LIBS := $(addprefix build/lib/, $(LIB_BASE) $(LIB_MAJOR) $(LIB_VERSION))
-
-.PHONY: all
-all: $(LIBS) $(MANS)
-
-$(LIBS): $(SRC) $(INCLUDE) Makefile
-	$(CC) $(CFLAGS) -fPIC -shared $(LINKER_FLAGS) -o $(LIB_VERSION) $(SRC)
-	$(CC) $(CFLAGS) -c -o $(LIB_OBJ) $(SRC)
-	ar rcs $(LIB_STATIC) $(LIB_OBJ)
-	chmod 644 $(LIB_STATIC)
-	rm -f $(LIB_OBJ)
-	ln -sf $(LIB_VERSION) $(LIB_BASE)
-	mkdir -p $(addprefix build/, include lib src)
-	install -m 644 $(SRC) build/src
-	install -m 644 $(INCLUDE) build/include
-	mv $(LIB_VERSION) $(LIB_BASE) $(LIB_STATIC) build/lib
-
-build/lib/$(LIB_BASE): build/lib/$(LIB_MAJOR)
-
-build/lib/$(LIB_MAJOR): build/lib/$(LIB_VERSION)
-
-.PHONY: install
-install: all
-	mkdir -p $(addprefix $(DESTDIR)/, src lib include $(MANDIR))
-	cp -R $(filter-out deb, $(wildcard build/*)) $(DESTDIR)
-	cp -R $(MANS) $(DESTDIR)/$(MANDIR)
-
-ifeq ($(OS),Linux)
-	ldconfig $(DESTDIR)/lib
-endif
-
-.PHONY: clean
-clean:
-	rm -rf build
-
-.PHONY: deb
-deb: $(LIBS) $(MANS)
-	rm -rf build/deb
-
-	# temporary fpm source
-	mkdir -p build/deb/$(BASENAME)/usr
-	cp -r $(addprefix build/, include lib src) build/deb/$(BASENAME)/usr
-	mkdir -p build/deb/$(BASENAME)/usr/share/man/man3
-	chmod 755 build/deb/$(BASENAME)/usr/share/man/man3
-	cp -r $(MANS) build/deb/$(BASENAME)/usr/share/man/man3
-	chmod 644 build/deb/$(BASENAME)/usr/share/man/man3/*
-	fpm \
-	    --after-install postinst \
-	    --after-remove postrm \
-	    --category libs \
-	    --chdir build/deb/$(BASENAME) \
-	    --conflicts lib50-c \
-	    --conflicts $(BASENAME) \
-	    --conflicts library50-c \
-		--deb-no-default-config-files \
-	    --deb-priority optional \
-	    --description "CS50 library for C" \
-	    --input-type dir \
-	    --license "MIT" \
-	    --maintainer "CS50 <sysadmins@cs50.harvard.edu>" \
-	    --name $(BASENAME) \
-	    --output-type deb \
-	    --package build/deb \
-	    --provides lib50-c \
-	    --provides $(BASENAME) \
-	    --provides library50-c \
-	    --replaces lib50-c \
-	    --replaces $(BASENAME) \
-	    --replaces library50-c \
-	    --url https://github.com/cs50/libcs50 \
-	    --vendor CS50 \
-	    --version $(VERSION) \
-	    .
-
-	rm -rf build/deb/$(BASENAME)
-
-rpm: $(LIBS) $(MANS)
-	rm -rf build/rpm
-
-	# Temporary fpm source
-	mkdir -p build/rpm/$(BASENAME)/usr
-	cp -r $(addprefix build/, include lib src) build/rpm/$(BASENAME)/usr
-	mkdir -p build/rpm/$(BASENAME)/usr/share/man/man3
-	cp -r $(MANS) build/rpm/$(BASENAME)/usr/share/man/man3
-	fpm \
-	    --after-install post \
-	    --after-remove postun \
-	    --category libs \
-	    --chdir build/rpm/$(BASENAME) \
-	    --description "CS50 library for C" \
-	    --input-type dir \
-	    --license "MIT" \
-	    --maintainer "CS50 <sysadmins@cs50.harvard.edu>" \
-	    --name $(BASENAME) \
-	    --output-type rpm \
-	    --package build/rpm \
-	    --provides $(BASENAME) \
-	    --url https://github.com/cs50/libcs50 \
-	    --vendor CS50 \
-	    --version $(VERSION) \
-	    .
-
-	rm -rf build/rpm/$(BASENAME)
-
-# Used by .travis.yml
-.PHONY: version
-version:
-	@echo $(VERSION)
-
-.PHONY: uninstall
-uninstall:
-	rm -f $(DESTDIR)/include/cs50.h
-	rm -rf $(DESTDIR)/src/cs50.c
-	rm -f $(addprefix $(DESTDIR)/lib/, $(LIB_BASE) $(LIB_MAJOR) $(LIB_VERSION))
-	rm -f $(addprefix $(DESTDIR)/$(MANDIR)/, get_*.3)
diff --git a/README.md b/README.md
deleted file mode 100644
index 3f9e611..0000000
--- a/README.md
+++ /dev/null
@@ -1,79 +0,0 @@
-# CS50 Library for C
-
-[![Build Status](https://travis-ci.org/cs50/libcs50.svg?branch=master)](https://travis-ci.org/cs50/libcs50)
-
-## Development
-
-`make`: builds dynamic library
-
-`make deb`: builds source deb
-
-`make install`: installs the library under `/usr/local` by default (set `DESTDIR` to change that)
-
-## Installation
-
-### Ubuntu
-
-```
-$ curl -s https://packagecloud.io/install/repositories/cs50/repo/script.deb.sh | sudo bash
-$ sudo apt-get install libcs50
-```
-
-### Fedora
-
-```
-$ curl -s https://packagecloud.io/install/repositories/cs50/repo/script.rpm.sh | sudo bash
-$ yum install libcs50
-```
-
-### From Source (Linux and Mac)
-
-1. Download the latest release from https://github.com/cs50/libcs50/releases
-1. Extract `libcs50-*.*`
-1. `cd libcs50-*`
-1. `sudo make install`
-
-By default, we install to `/usr/local`. If you'd like to change the installation location, run
-`sudo DESTDIR=/path/to/install make install` as desired.
-
-## Troubleshooting
-1. If, when compiling a program, you see `/usr/bin/ld: cannot find -lcs50`:
-Add `export LIBRARY_PATH=/usr/local/lib` to your `.bashrc`.
-1. If, when compiling a program, you see `fatal error: 'cs50.h' file not found`:
-Add `export C_INCLUDE_PATH=/usr/local/include` to your `.bashrc`.
-1. If, when executing a program, you see `error while loading shared libraries: libcs50.so.8: cannot open shared object file: No such file or directory`:
-Add `export LD_LIBRARY_PATH=/usr/local/lib` to your `.bashrc`.
-
-Close and reopen any terminal windows.
-
-## Usage
-
-Link with `-lcs50`.
-
-    #include <cs50.h>
-
-    ...
-    char c = get_char("Prompt: ");
-    double d = get_double("Prompt: ");
-    float f = get_float("Prompt: ");
-    int i = get_int("Prompt: ");
-    long l = get_long("Prompt: ");
-    string s = get_string("Prompt: ");
-
-    // deprecated as of fall 2017
-    long long ll = get_long_long("Prompt: ");
-
-## Documentation
-
-See `man get_*` after installation, or [CS50 Reference](https://reference.cs50.net/cs50/)!
-
-## TODO
-
-*   Add tests.
-
-## Contributors
-
-*   [Chad Sharp](https://github.com/crossroads1112)
-*   [Emrul Hasan Zawad](https://github.com/ehzShelter)
-*   [Ivan Jasenov](https://github.com/IvanJasenov)
-*   [Kareem Zidane](https://github.com/kzidane)
diff --git a/docs/get_char.3.gz b/docs/get_char.3.gz
deleted file mode 100644
index f92f319..0000000
Binary files a/docs/get_char.3.gz and /dev/null differ
diff --git a/docs/get_double.3.gz b/docs/get_double.3.gz
deleted file mode 100644
index 730b8d2..0000000
Binary files a/docs/get_double.3.gz and /dev/null differ
diff --git a/docs/get_float.3.gz b/docs/get_float.3.gz
deleted file mode 100644
index 8705abe..0000000
Binary files a/docs/get_float.3.gz and /dev/null differ
diff --git a/docs/get_int.3.gz b/docs/get_int.3.gz
deleted file mode 100644
index ebb742e..0000000
Binary files a/docs/get_int.3.gz and /dev/null differ
diff --git a/docs/get_long.3.gz b/docs/get_long.3.gz
deleted file mode 100644
index 90002f1..0000000
Binary files a/docs/get_long.3.gz and /dev/null differ
diff --git a/docs/get_long_long.3.gz b/docs/get_long_long.3.gz
deleted file mode 100644
index 28b96b7..0000000
Binary files a/docs/get_long_long.3.gz and /dev/null differ
diff --git a/docs/get_string.3.gz b/docs/get_string.3.gz
deleted file mode 100644
index abbe1f9..0000000
Binary files a/docs/get_string.3.gz and /dev/null differ
diff --git a/post b/post
deleted file mode 100644
index 38bbe34..0000000
--- a/post
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-
-case "$1" in
-    # initial installation or upgrade
-    1|2)
-        ldconfig /usr/local/lib
-    ;;
-esac
diff --git a/postinst b/postinst
deleted file mode 100644
index 501a3c1..0000000
--- a/postinst
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/bin/sh
-# postinst script for libcs50
-#
-# see: dh_installdeb(1)
-
-set -e
-
-# summary of how this script can be called:
-#        * <postinst> `configure' <most-recently-configured-version>
-#        * <old-postinst> `abort-upgrade' <new version>
-#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
-#          <new-version>
-#        * <postinst> `abort-remove'
-#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
-#          <failed-install-package> <version> `removing'
-#          <conflicting-package> <version>
-# for details, see http://www.debian.org/doc/debian-policy/ or
-# the debian-policy package
-
-
-case "$1" in
-    configure)
-        ldconfig
-    ;;
-
-    abort-upgrade|abort-remove|abort-deconfigure)
-    ;;
-
-    *)
-        echo "postinst called with unknown argument \`$1'" >&2
-        exit 1
-    ;;
-esac
diff --git a/postrm b/postrm
deleted file mode 100644
index 8a084cd..0000000
--- a/postrm
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/bin/sh
-# postrm script for libcs50
-#
-# see: dh_installdeb(1)
-
-set -e
-
-# summary of how this script can be called:
-#        * <postrm> `remove'
-#        * <postrm> `purge'
-#        * <old-postrm> `upgrade' <new-version>
-#        * <new-postrm> `failed-upgrade' <old-version>
-#        * <new-postrm> `abort-install'
-#        * <new-postrm> `abort-install' <old-version>
-#        * <new-postrm> `abort-upgrade' <old-version>
-#        * <disappearer's-postrm> `disappear' <overwriter>
-#          <overwriter-version>
-# for details, see http://www.debian.org/doc/debian-policy/ or
-# the debian-policy package
-
-
-case "$1" in
-    remove)
-        ldconfig
-    ;;
-
-    purge|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
-    ;;
-
-    *)
-        echo "postrm called with unknown argument \`$1'" >&2
-        exit 1
-    ;;
-esac
diff --git a/postun b/postun
deleted file mode 100644
index 4ddbc8b..0000000
--- a/postun
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/sh
-
-case "$1" in
-	# uninstallation
-	0)
-		ldconfig /usr/local/lib
-	;;
-
-	# upgrade
-	1)
-	;;
-esac
diff --git a/read_file.c b/read_file.c
new file mode 100644
index 0000000..3ed59c4
--- /dev/null
+++ b/read_file.c
@@ -0,0 +1,130 @@
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef char *string;
+
+/**
+ * TODO
+ */
+string *read_file(const string pathname)
+{
+    // Open file
+    FILE *file = fopen(pathname, "r");
+    if (file == NULL)
+    {
+        return NULL;
+    }
+
+    // Allocate space for NULL-terminated array of lines
+    string *lines = malloc(sizeof(string *));
+    if (lines == NULL)
+    {
+        return NULL;
+    }
+    lines[0] = NULL;
+    size_t size = 1;
+
+    // Read chars
+    long start = 0, end = 0;
+    while (true)
+    {
+        // Read char
+        int c = fgetc(file);
+
+        // Check for line ending
+        if (c == EOF || c == '\r' || c == '\n')
+        {
+            // If we've read a line with at least one char
+            if (start != end)
+            {
+                // Allocate space for line
+                string line = malloc(end - start + 1);
+                if (line == NULL)
+                {
+                    // TODO
+                    return NULL;
+                }
+
+                // Read string
+                if (fseek(file, start, SEEK_SET) == -1 || fread(line, end - start, 1, file) != 1)
+                {
+                    // TODO
+                    return NULL;
+                }
+
+                // Terminate string
+                line[end - start] = '\0';
+
+                // Extend array
+                if (size == SIZE_MAX)
+                {
+                    // TODO
+                    return NULL;
+                }
+                string *temp = realloc(lines, ++size);
+                if (temp == NULL)
+                {
+                    // TODO
+                    return NULL;
+                }
+                temp[size - 2] = line;
+                temp[size - 1] = NULL;
+                lines = temp;
+
+                // Start of next line, if any
+                start = end = end + 1;
+
+                // Check for CR
+                if (c == '\r')
+                {
+                    // Check for LF
+                    int d = fgetc(file);
+                    if (d == '\n')
+                    {
+                        // Ignore LF
+                        start = end = end + 1;
+                    }
+                    else if (d != EOF)
+                    {
+                        // Unget char
+                        if (ungetc(d, file) == EOF)
+                        {
+                            // TODO
+                        }
+                    }
+                }
+            }
+
+            // End of file
+            if (c == EOF)
+            {
+                break;
+            }
+        }
+
+        // Not at end of file or line
+        else
+        {
+            end++;
+        }
+    }
+
+    // Return array of lines
+    return lines;
+}
+
+int main(void)
+{
+    string *lines = read_file("read_file.txt");
+    if (lines == NULL)
+    {
+        printf("ERROR\n");
+        exit(1);
+    }
+    for (int i = 0; lines[i] != NULL; i++)
+    {
+        printf("%s\n", lines[i]);
+    }
+}
diff --git a/read_file.txt b/read_file.txt
new file mode 100644
index 0000000..1c385c1
--- /dev/null
+++ b/read_file.txt
@@ -0,0 +1 @@
+foo
bar
baz
\ No newline at end of file
diff --git a/src/cs50.c b/src/cs50.c
deleted file mode 100644
index 728fbfa..0000000
--- a/src/cs50.c
+++ /dev/null
@@ -1,490 +0,0 @@
-/**
- * CS50 Library for C
- * https://github.com/cs50/libcs50
- *
- * Based on Eric Roberts' genlib.c and simpio.c.
- *
- * Copyright (c) 2023
- * All rights reserved
- *
- * BSD 3-Clause License
- * http://www.opensource.org/licenses/BSD-3-Clause
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- *   this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * * Neither the name of CS50 nor the names of its contributors may be used
- *   to endorse or promote products derived from this software without
- *   specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
- * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#define _GNU_SOURCE
-
-#include <ctype.h>
-#include <errno.h>
-#include <float.h>
-#include <limits.h>
-#include <math.h>
-#include <stdarg.h>
-#include <stdint.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "cs50.h"
-
-// Disable warnings from some compilers about the way we use variadic arguments
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wformat-security"
-
-/**
- * Number of strings allocated by get_string.
- */
-static size_t allocations = 0;
-
-/**
- * Array of strings allocated by get_string.
- */
-static string *strings = NULL;
-
-/**
- * Prompts user for a line of text from standard input and returns
- * it as a string (char *), sans trailing line ending. Supports
- * CR (\r), LF (\n), and CRLF (\r\n) as line endings. If user
- * inputs only a line ending, returns "", not NULL. Returns NULL
- * upon error or no input whatsoever (i.e., just EOF). Stores string
- * on heap, but library's destructor frees memory on program's exit.
- */
-#undef get_string
-string get_string(va_list *args, const char *format, ...)
-{
-    // Check whether we have room for another string
-    if (allocations == SIZE_MAX / sizeof (string))
-    {
-        return NULL;
-    }
-
-    // Growable buffer for characters
-    string buffer = NULL;
-
-    // Capacity of buffer
-    size_t capacity = 0;
-
-    // Number of characters actually in buffer
-    size_t size = 0;
-
-    // Character read or EOF
-    int c;
-
-    // Prompt user
-    if (format != NULL)
-    {
-        // Initialize variadic argument list
-        va_list ap;
-
-        // Students' code will pass in printf-like arguments as variadic
-        // parameters. The student-facing get_string macro always sets args to
-        // NULL. In this case, we initialize the list of variadic parameters
-        // the standard way with va_start.
-        if (args == NULL)
-        {
-            va_start(ap, format);
-        }
-
-        // When functions in this library call get_string they will have
-        // already stored their variadic parameters in a `va_list` and so they
-        // just pass that in by pointer.
-        else
-        {
-            // Put a copy of argument list in ap so it is not consumed by vprintf
-            va_copy(ap, *args);
-        }
-
-        // Print prompt
-        vprintf(format, ap);
-
-        // Clean up argument list
-        va_end(ap);
-    }
-
-    // Iteratively get characters from standard input, checking for CR (Mac OS), LF (Linux), and CRLF (Windows)
-    while ((c = fgetc(stdin)) != '\r' && c != '\n' && c != EOF)
-    {
-        // Grow buffer if necessary
-        if (size + 1 > capacity)
-        {
-            // Increment buffer's capacity if possible
-            if (capacity < SIZE_MAX)
-            {
-                capacity++;
-            }
-            else
-            {
-                free(buffer);
-                return NULL;
-            }
-
-            // Extend buffer's capacity
-            string temp = realloc(buffer, capacity);
-            if (temp == NULL)
-            {
-                free(buffer);
-                return NULL;
-            }
-            buffer = temp;
-        }
-
-        // Append current character to buffer
-        buffer[size++] = c;
-    }
-
-    // Check whether user provided no input
-    if (size == 0 && c == EOF)
-    {
-        return NULL;
-    }
-
-    // Check whether user provided too much input (leaving no room for trailing NUL)
-    if (size == SIZE_MAX)
-    {
-        free(buffer);
-        return NULL;
-    }
-
-    // If last character read was CR, try to read LF as well
-    if (c == '\r' && (c = fgetc(stdin)) != '\n')
-    {
-        // Return NULL if character can't be pushed back onto standard input
-        if (c != EOF && ungetc(c, stdin) == EOF)
-        {
-            free(buffer);
-            return NULL;
-        }
-    }
-
-    // Minimize buffer
-    string s = realloc(buffer, size + 1);
-    if (s == NULL)
-    {
-        free(buffer);
-        return NULL;
-    }
-
-    // Terminate string
-    s[size] = '\0';
-
-    // Resize array so as to append string
-    string *tmp = realloc(strings, sizeof (string) * (allocations + 1));
-    if (tmp == NULL)
-    {
-        free(s);
-        return NULL;
-    }
-    strings = tmp;
-
-    // Append string to array
-    strings[allocations] = s;
-    allocations++;
-
-    // Return string
-    return s;
-}
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent char; if text is not a single char, user is prompted
- * to retry. If line can't be read, returns CHAR_MAX.
- */
-char get_char(const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-
-    // Try to get a char from user
-    while (true)
-    {
-        // Get line of text, returning CHAR_MAX on failure
-        string line = get_string(&ap, format);
-        if (line == NULL)
-        {
-            va_end(ap);
-            return CHAR_MAX;
-        }
-
-        // Return a char if only a char was provided
-        char c, d;
-        if (sscanf(line, "%c%c", &c, &d) == 1)
-        {
-            va_end(ap);
-            return c;
-        }
-    }
-}
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent double as precisely as possible; if text does not represent
- * a double or if value would cause underflow or overflow, user is
- * prompted to retry. If line can't be read, returns DBL_MAX.
- */
-double get_double(const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-
-    // Try to get a double from user
-    while (true)
-    {
-        // Get line of text, returning DBL_MAX on failure
-        string line = get_string(&ap, format);
-        if (line == NULL)
-        {
-            va_end(ap);
-            return DBL_MAX;
-        }
-
-        // Return a double if only a double was provided
-        if (strlen(line) > 0 && !isspace((unsigned char) line[0]))
-        {
-            char *tail;
-            errno = 0;
-            double d = strtod(line, &tail);
-            if (errno == 0 && *tail == '\0' && isfinite(d) != 0 && d < DBL_MAX)
-            {
-                // Disallow hexadecimal and exponents
-                if (strcspn(line, "XxEePp") == strlen(line))
-                {
-                    va_end(ap);
-                    return d;
-                }
-            }
-        }
-    }
-}
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent float as precisely as possible; if text does not represent
- * a float or if value would cause underflow or overflow, user is prompted
- * to retry. If line can't be read, returns FLT_MAX.
- */
-float get_float(const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-
-    // Try to get a float from user
-    while (true)
-    {
-        // Get line of text, returning FLT_MAX on failure
-        string line = get_string(&ap, format);
-
-        if (line == NULL)
-        {
-            va_end(ap);
-            return FLT_MAX;
-        }
-
-        // Return a float if only a float was provided
-        if (strlen(line) > 0 && !isspace((unsigned char) line[0]))
-        {
-            char *tail;
-            errno = 0;
-            float f = strtof(line, &tail);
-            if (errno == 0 && *tail == '\0' && isfinite(f) != 0 && f < FLT_MAX)
-            {
-                // Disallow hexadecimal and exponents
-                if (strcspn(line, "XxEePp") == strlen(line))
-                {
-                    va_end(ap);
-                    return f;
-                }
-            }
-        }
-    }
-}
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent int; if text does not represent an int in [-2^31, 2^31 - 1)
- * or would cause underflow or overflow, user is prompted to retry. If line
- * can't be read, returns INT_MAX.
- */
-int get_int(const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-
-    // Try to get an int from user
-    while (true)
-    {
-        // Get line of text, returning INT_MAX on failure
-        string line = get_string(&ap, format);
-        if (line == NULL)
-        {
-            va_end(ap);
-            return INT_MAX;
-        }
-
-        // Return an int if only an int (in range) was provided
-        if (strlen(line) > 0 && !isspace((unsigned char) line[0]))
-        {
-            char *tail;
-            errno = 0;
-            long n = strtol(line, &tail, 10);
-            if (errno == 0 && *tail == '\0' && n >= INT_MIN && n < INT_MAX)
-            {
-                va_end(ap);
-                return n;
-            }
-        }
-    }
-}
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent long; if text does not represent a long in
- * [-2^63, 2^63 - 1) or would cause underflow or overflow, user is
- * prompted to retry. If line can't be read, returns LONG_MAX.
- */
-long get_long(const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-
-    // Try to get a long from user
-    while (true)
-    {
-        // Get line of text, returning LONG_MAX on failure
-        string line = get_string(&ap, format);
-        if (line == NULL)
-        {
-            va_end(ap);
-            return LONG_MAX;
-        }
-
-        // Return a long if only a long (in range) was provided
-        if (strlen(line) > 0 && !isspace((unsigned char) line[0]))
-        {
-            char *tail;
-            errno = 0;
-            long n = strtol(line, &tail, 10);
-            if (errno == 0 && *tail == '\0' && n < LONG_MAX)
-            {
-                va_end(ap);
-                return n;
-            }
-        }
-    }
-}
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent long long; if text does not represent a long long in
- * [-2^63, 2^63 - 1) or would cause underflow or overflow, user is
- * prompted to retry. If line can't be read, returns LLONG_MAX.
- */
-long long get_long_long(const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-
-    // Try to get a long long from user
-    while (true)
-    {
-        // Get line of text, returning LLONG_MAX on failure
-        string line = get_string(&ap, format);
-        if (line == NULL)
-        {
-            va_end(ap);
-            return LLONG_MAX;
-        }
-
-        // Return a long long if only a long long (in range) was provided
-        if (strlen(line) > 0 && !isspace((unsigned char) line[0]))
-        {
-            char *tail;
-            errno = 0;
-            long long n = strtoll(line, &tail, 10);
-            if (errno == 0 && *tail == '\0' && n < LLONG_MAX)
-            {
-                va_end(ap);
-                return n;
-            }
-        }
-    }
-}
-
-/**
- * Called automatically after execution exits main.
- */
-static void teardown(void)
-{
-    // Free library's strings
-    if (strings != NULL)
-    {
-        for (size_t i = 0; i < allocations; i++)
-        {
-            free(strings[i]);
-        }
-        free(strings);
-    }
-}
-
-/**
- * Preprocessor magic to make initializers work somewhat portably
- * Modified from http://stackoverflow.com/questions/1113409/attribute-constructor-equivalent-in-vc
- */
-#if defined (_MSC_VER) // MSVC
-    #pragma section(".CRT$XCU",read)
-    #define INITIALIZER_(FUNC,PREFIX) \
-        static void FUNC(void); \
-        __declspec(allocate(".CRT$XCU")) void (*FUNC##_)(void) = FUNC; \
-        __pragma(comment(linker,"/include:" PREFIX #FUNC "_")) \
-        static void FUNC(void)
-    #ifdef _WIN64
-        #define INITIALIZER(FUNC) INITIALIZER_(FUNC,"")
-    #else
-        #define INITIALIZER(FUNC) INITIALIZER_(FUNC,"_")
-    #endif
-#elif defined (__GNUC__) // GCC, Clang, MinGW
-    #define INITIALIZER(FUNC) \
-        static void FUNC(void) __attribute__((constructor)); \
-        static void FUNC(void)
-#else
-    #error The CS50 library requires some compiler-specific features, \
-           but we do not recognize this compiler/version. Please file an issue at \
-           https://github.com/cs50/libcs50
-#endif
-
-/**
- * Called automatically before execution enters main.
- */
-INITIALIZER(setup)
-{
-    // Disable buffering for standard output
-    setvbuf(stdout, NULL, _IONBF, 0);
-    atexit(teardown);
-}
-
-// Re-enable warnings
-#pragma GCC diagnostic pop
diff --git a/src/cs50.h b/src/cs50.h
deleted file mode 100644
index fc58db5..0000000
--- a/src/cs50.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/**
- * CS50 Library for C
- * https://github.com/cs50/libcs50
- *
- * Based on Eric Roberts' genlib.c and simpio.c.
- *
- * Copyright (c) 2023
- * All rights reserved
- *
- * BSD 3-Clause License
- * http://www.opensource.org/licenses/BSD-3-Clause
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- *   this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * * Neither the name of CS50 nor the names of its contributors may be used
- *   to endorse or promote products derived from this software without
- *   specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
- * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef CS50_H
-#define CS50_H
-
-#include <float.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stddef.h>
-
-/**
- * Our own type for (pointers to) strings.
- */
-typedef char *string;
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent char; if text is not a single char, user is prompted
- * to retry. If line can't be read, returns CHAR_MAX.
- */
-char get_char(const char *format, ...) __attribute__((format(printf, 1, 2)));
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent double as precisely as possible; if text does not represent
- * a double or if value would cause underflow or overflow, user is
- * prompted to retry. If line can't be read, returns DBL_MAX.
- */
-double get_double(const char *format, ...) __attribute__((format(printf, 1, 2)));
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent float as precisely as possible; if text does not represent
- * a float or if value would cause underflow or overflow, user is prompted
- * to retry. If line can't be read, returns FLT_MAX.
- */
-float get_float(const char *format, ...) __attribute__((format(printf, 1, 2)));
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent int; if text does not represent an int in [-2^31, 2^31 - 1)
- * or would cause underflow or overflow, user is prompted to retry. If line
- * can't be read, returns INT_MAX.
- */
-int get_int(const char *format, ...) __attribute__((format(printf, 1, 2)));
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent long; if text does not represent a long in
- * [-2^63, 2^63 - 1) or would cause underflow or overflow, user is
- * prompted to retry. If line can't be read, returns LONG_MAX.
- */
-long get_long(const char *format, ...) __attribute__((format(printf, 1, 2)));
-
-/**
- * Prompts user for a line of text from standard input and returns the
- * equivalent long long; if text does not represent a long long in
- * [-2^63, 2^63 - 1) or would cause underflow or overflow, user is
- * prompted to retry. If line can't be read, returns LLONG_MAX.
- */
-long long get_long_long(const char *format, ...) __attribute__((format(printf, 1, 2)));
-
-/**
- * Prompts user for a line of text from standard input and returns
- * it as a string (char *), sans trailing line ending. Supports
- * CR (\r), LF (\n), and CRLF (\r\n) as line endings. If user
- * inputs only a line ending, returns "", not NULL. Returns NULL
- * upon error or no input whatsoever (i.e., just EOF). Stores string
- * on heap, but library's destructor frees memory on program's exit.
- */
-string get_string(va_list *args, const char *format, ...) __attribute__((format(printf, 2, 3)));
-#define get_string(...) get_string(NULL, __VA_ARGS__)
-
-#endif
diff --git a/tests/get_int.c b/tests/get_int.c
deleted file mode 100644
index 80eab12..0000000
--- a/tests/get_int.c
+++ /dev/null
@@ -1,10 +0,0 @@
-#include <stdio.h>
-#include "cs50.h"
-
-int main(void)
-{
-    int i = get_int();
-    printf("%i\n", i);
-    int j = get_int("Foo: ");
-    printf("%i\n", j);
-}
diff --git a/tests/hackerrank.c b/tests/hackerrank.c
deleted file mode 100644
index 8b6789b..0000000
--- a/tests/hackerrank.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include "cs50.h"
-#include <stdio.h>
-
-int main(void)
-{
-    string s = get_string();
-    printf("hello, %s\n", s);
-}