diff --git a/src/doc/genalloc.h.0.md b/src/doc/genalloc.h.0.md
new file mode 100644
index 0000000..8b6b4a4
--- /dev/null
+++ b/src/doc/genalloc.h.0.md
@@ -0,0 +1,106 @@
+% limb manual
+% genalloc.h(0)
+
+# NAME
+
+genalloc.h - general heap memory management
+
+# SYNOPSIS
+
+    #include <limb/genalloc.h>
+
+# DESCRIPTION
+
+This header defines functions to work heap-allocated memory. It is implemented
+on top of *stralloc* (See [stralloc.h](0) for more) providing an API to store
+dynamic arrays of fixed-size objects.
+
+<inc skalibs.md>
+
+## Types
+
+The following types are defined :
+
+: *genalloc*
+:: A *struct stralloc*, as *genalloc* is implemented on top of *stralloc*
+
+## Objects
+
+The following objects are defined :
+
+: *genalloc_zero*
+:: An empty *genalloc*, which can be used for initialization.
+
+## Macros
+
+The following macros are defined :
+
+: *GENALLOC_ZERO*
+:: Value to initialize a stack-allocated *genalloc*.
+
+## Functions
+
+The following functions/macros are defined :
+
+: [genalloc_ready_tuned](3)
+:: Ensure there's enough space in a *genalloc*.
+
+: [genalloc_ready](3)
+:: Ensure there's enough space in a *genalloc*.
+
+: [genalloc_readyplus](3)
+:: Ensure there's enough extra space in a *genalloc*.
+
+
+: [genalloc_free](3)
+:: Free memory associated with a *genalloc*.
+
+: [genalloc_deepfree](3)
+:: Free memory associated with a *genalloc*.
+
+: [genalloc_deepfree_size](3)
+:: Free memory associated with a *genalloc*.
+
+: [genalloc_shrink](3)
+:: Reduce memory usage to what's used.
+
+
+: [genalloc_s](3)
+:: Return a pointer to the data in a *genalloc*
+
+: [genalloc_len](3)
+:: Return the length/number of element in a *genalloc*
+
+: [genalloc_setlen](3)
+:: Set the length/number of element in a *genalloc*
+
+
+: [genalloc_copyb](3)
+:: Copy data into a *genalloc*.
+
+: [genalloc_copy](3)
+:: Copy content of a *genalloc* into another one.
+
+: [genalloc_catb](3)
+:: Append data into a *genalloc*.
+
+: [genalloc_cat](3)
+:: Append the content of a *genalloc* into another one.
+
+: [genalloc_append](3)
+:: Append a character into a *genalloc*.
+
+
+: [genalloc_insertb](3)
+:: Insert data into a *genalloc* at a specific offset.
+
+: [genalloc_insert](3)
+:: Insert the content of a *genalloc* into another one at a specific offset.
+
+
+: [genalloc_remove](3)
+:: Remove data from a *genalloc*.
+
+
+: [genalloc_reverse](3)
+:: Reverse the content of a *genalloc*.
diff --git a/src/doc/genalloc.h/genalloc_append.3.md b/src/doc/genalloc.h/genalloc_append.3.md
new file mode 120000
index 0000000..fedaf9c
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_append.3.md
@@ -0,0 +1 @@
+genalloc_cat.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_cat.3.md b/src/doc/genalloc.h/genalloc_cat.3.md
new file mode 100644
index 0000000..ae36521
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_cat.3.md
@@ -0,0 +1,72 @@
+% limb manual
+% genalloc_cat(3)
+
+# NAME
+
+genalloc_catb, genalloc_cat, genalloc_copyb, genalloc_copy, genalloc_insertb,
+genalloc_insert, genalloc_append - adding data into a genalloc
+
+# SYNOPSIS
+
+    #include <limb/genalloc.h>
+
+```pre hl
+int genalloc_catb(<em>type</em>, genalloc *<em>ga</em>, const <em>type</em> *<em>el</em>, int <em>num</em>)
+int genalloc_cat(<em>type</em>, genalloc *<em>ga</em>, const genalloc *<em>gasce</em>)
+
+int genalloc_copyb(<em>type</em>, genalloc *<em>ga</em>, const <em>type</em> *<em>el</em>, int <em>num</em>)
+int genalloc_copy(<em>type</em>, genalloc *<em>ga</em>, const genalloc *<em>gasce</em>)
+
+int genalloc_insertb(<em>type</em>, genalloc *<em>ga</em>, size_t <em>offset</em>, const <em>type</em> *<em>el</em>, int <em>num</em>)
+int genalloc_insert(<em>type</em>, genalloc *<em>ga</em>, size_t <em>offset</em>, const genalloc *<em>gasce</em>)
+
+int genalloc_append(<em>type</em>, genalloc *<em>ga</em>, type *<em>el</em>)
+```
+
+# DESCRIPTION
+
+The `genalloc_catb`() macro appends the content of memory pointed by `el` -
+which must be `num` elements of type `type` - into the genalloc pointed by `ga`.
+
+The `genalloc_cat`() macro is similar to `genalloc_catb`() macro but
+appending the content of genalloc `gasce`.
+
+
+The `genalloc_copyb`() macro copies the content of memory pointed by `el` -
+which must be `num` elements of type `type` - into the genalloc pointed by `ga`.
+That is, the genalloc will only contain `el` afterwards.
+
+The `genalloc_copy`() macro is similar to `genalloc_copyb`() macro but
+copying the content of genalloc `gasce`.
+
+
+The `genalloc_insertb`() macro inserts the content of memory pointed by
+`el` - which must be `num` elements of type `type` -  into the genalloc pointed
+by `ga` at offset `offset`.
+
+The `genalloc_insert`() macro is similar to `genalloc_insertb`() macro but
+inserting the content of genalloc `gasce`.
+
+
+The `genalloc_append`() macro appends the element of type `type` pointed be
+`el` into the genalloc pointed by `ga`.
+
+! NOTE:
+! Obviously all these macros ensure that there is enough room available in the
+! genalloc `ga` before writing data into it.
+
+# RETURN VALUE
+
+These functions return 1 on success. Otherwise they return 0 and set `errno` to
+indicate the error.
+
+# ERRORS
+
+The `genalloc_catb`(), `genalloc_cat`(), `genalloc_copyb`(), `genalloc_copy`(),
+`genalloc_insertb`() and `genalloc_insert`() functions may fail for the errors
+described for [stralloc_catb](3), [stralloc_cat](3), [stralloc_copyb](3),
+[stralloc_copy](3), [stralloc_insertb](3) and [stralloc_insert](3) respectively.
+
+The `genalloc_append`() function may fail for the error described for
+[stralloc_catb](3).
+
diff --git a/src/doc/genalloc.h/genalloc_catb.3.md b/src/doc/genalloc.h/genalloc_catb.3.md
new file mode 120000
index 0000000..fedaf9c
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_catb.3.md
@@ -0,0 +1 @@
+genalloc_cat.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_copy.3.md b/src/doc/genalloc.h/genalloc_copy.3.md
new file mode 120000
index 0000000..fedaf9c
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_copy.3.md
@@ -0,0 +1 @@
+genalloc_cat.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_copyb.3.md b/src/doc/genalloc.h/genalloc_copyb.3.md
new file mode 120000
index 0000000..fedaf9c
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_copyb.3.md
@@ -0,0 +1 @@
+genalloc_cat.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_deepfree.3.md b/src/doc/genalloc.h/genalloc_deepfree.3.md
new file mode 120000
index 0000000..ef88e13
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_deepfree.3.md
@@ -0,0 +1 @@
+genalloc_ready_tuned.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_deepfree_size.3.md b/src/doc/genalloc.h/genalloc_deepfree_size.3.md
new file mode 120000
index 0000000..ef88e13
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_deepfree_size.3.md
@@ -0,0 +1 @@
+genalloc_ready_tuned.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_free.3.md b/src/doc/genalloc.h/genalloc_free.3.md
new file mode 120000
index 0000000..ef88e13
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_free.3.md
@@ -0,0 +1 @@
+genalloc_ready_tuned.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_insert.3.md b/src/doc/genalloc.h/genalloc_insert.3.md
new file mode 120000
index 0000000..fedaf9c
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_insert.3.md
@@ -0,0 +1 @@
+genalloc_cat.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_insertb.3.md b/src/doc/genalloc.h/genalloc_insertb.3.md
new file mode 120000
index 0000000..fedaf9c
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_insertb.3.md
@@ -0,0 +1 @@
+genalloc_cat.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_len.3.md b/src/doc/genalloc.h/genalloc_len.3.md
new file mode 120000
index 0000000..98f1774
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_len.3.md
@@ -0,0 +1 @@
+genalloc_s.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_ready.3.md b/src/doc/genalloc.h/genalloc_ready.3.md
new file mode 120000
index 0000000..ef88e13
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_ready.3.md
@@ -0,0 +1 @@
+genalloc_ready_tuned.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_ready_tuned.3.md b/src/doc/genalloc.h/genalloc_ready_tuned.3.md
new file mode 100644
index 0000000..d601405
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_ready_tuned.3.md
@@ -0,0 +1,78 @@
+% limb manual
+% genalloc_ready_tuned(3)
+
+# NAME
+
+genalloc_ready_tuned, genalloc_ready, genalloc_readyplus, genalloc_free,
+genalloc_deepfree, genalloc_deepfree_size, genalloc_shrink - allocate and
+free memory associated with a genalloc
+
+# SYNOPSIS
+
+    #include <limb/genalloc.h>
+
+```pre hl
+int genalloc_ready_tuned(<em>type</em>, genalloc *<em>ga</em>, int <em>num</em>, size_t <em>base</em>, size_t <em>a</em>, size_t <em>b</em>)
+int genalloc_ready(<em>type</em>, genalloc *<em>ga</em>, int <em>num</em>)
+int genalloc_readyplus(<em>type</em>, genalloc *<em>ga</em>, int <em>num</em>)
+
+int genalloc_shrink(<em>type</em>, genalloc *<em>ga</em>)
+
+void genalloc_free(<em>type</em>, genalloc *<em>ga</em>)
+void genalloc_deepfree(<em>type</em>, genalloc *<em>ga</em>, free_func *<em>fn</em>)
+void genalloc_deepfree_size(genalloc *<em>ga</em>, free_func *<em>fn</em>, size_t <em>len</em>)
+```
+
+# DESCRIPTION
+
+The `genalloc_ready`() macro ensure that genalloc pointed by `ga` has enough
+memory for `num` elements of type `type`, reallocating memory if needed.
+This does not mean as much is available, as there might be data in use already.
+
+The `genalloc_readyplus`() macro ensure that genalloc pointed by `ga` has enough
+memory available for `num` more elements of type `type`, reallocating memory if
+needed. Available here means space that is allocated but not yet in use, making
+this the most commonly used way to prepare a *genalloc* before writing data into
+it.
+
+The `genalloc_ready_tuned`() is similar to `genalloc_ready`() but with more
+fine-tuning settings.
+
+Note that this is only needed when writing into the *genalloc* directly, as all
+functions of the *genalloc* API (e.g. [genalloc_append](3)) handles that
+automatically.
+
+The `genalloc_shrink`() macro will ensure that the allocated memory is only
+as large as is in use in genalloc `ga`.
+
+The `genalloc_deepfree_size`() function is useful when storing pointers in a
+genalloc, or any data that must have associated memory freed for each elements.
+It will iterate over the data in genalloc `ga` - which must contain elements of
+`len` bytes - and call the function `fn` with the address of each element as
+argument.
+Once done, it will free all memory associated with the genalloc `ga` itself.
+
+The `genalloc_deepfree`() macro is similar to `genalloc_deepfree_size`() but for
+genalloc containing elements of type `type`.
+
+The `genalloc_free`() macro will free all memory associated with the genalloc
+`ga`.
+
+# RETURN VALUE
+
+These functions (except for `genalloc_free`(), `genalloc_deepfree`() and
+`genalloc_deepfree_size`()) return 1 on success. Otherwise they return 0 and
+set `errno` to indicate the error.
+
+# ERRORS
+
+The `genalloc_ready_tuned`(), `genalloc_ready`() and `genalloc_readyplus`()
+functions may fail for the errors described for [stralloc_ready_tuned](3),
+[stralloc_ready](3) and [stralloc_readuplus](3), respectively.
+
+The `genalloc_shrink`() function may fail for the errors described for
+[stralloc_shrink](3).
+
+# SEE ALSO
+
+[genalloc_remove](3)
diff --git a/src/doc/genalloc.h/genalloc_readyplus.3.md b/src/doc/genalloc.h/genalloc_readyplus.3.md
new file mode 120000
index 0000000..ef88e13
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_readyplus.3.md
@@ -0,0 +1 @@
+genalloc_ready_tuned.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_remove.3.md b/src/doc/genalloc.h/genalloc_remove.3.md
new file mode 100644
index 0000000..c6b143a
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_remove.3.md
@@ -0,0 +1,36 @@
+% limb manual
+% genalloc_remove(3)
+
+# NAME
+
+genalloc_remove - remove data from a genalloc
+
+# SYNOPSIS
+
+    #include <limb/genalloc.h>
+
+```pre hl
+int genalloc_remove(<em>type</em>, genalloc *<em>ga</em>, int <em>offset</em>, int <em>num</em>)
+```
+
+# DESCRIPTION
+
+The `genalloc_remove`() macro removes `num` elements from the genalloc `ga`
+starting with element `offset`th.
+
+The member `len` will be adjusted and data afterwards moved as needed, but no
+re-allocation occurs.
+
+# RETURN VALUE
+
+The `genalloc_remove`() function returns 1 on success. Otherwise it returns 0
+and sets `errno` to indicate the error.
+
+# ERRORS
+
+The `genalloc_remove`() function may fail for the errors described for
+[stralloc_remove](3).
+
+# SEE ALSO
+
+[genalloc_shrunk](3)
diff --git a/src/doc/genalloc.h/genalloc_reverse.3.md b/src/doc/genalloc.h/genalloc_reverse.3.md
new file mode 100644
index 0000000..d9b3c1e
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_reverse.3.md
@@ -0,0 +1,19 @@
+% limb manual
+% genalloc_reverse(3)
+
+# NAME
+
+genalloc_reverse - reverse the content of a genalloc
+
+# SYNOPSIS
+
+    #include <limb/genalloc.h>
+
+```pre hl
+void genalloc_reverse(<em>type</em>, genalloc *<em>ga</em>)
+```
+
+# DESCRIPTION
+
+The `genalloc_reverse`() macro reverses the order of elements in genalloc `ga`,
+which must contain elements of type `type`.
diff --git a/src/doc/genalloc.h/genalloc_s.3.md b/src/doc/genalloc.h/genalloc_s.3.md
new file mode 100644
index 0000000..116b79c
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_s.3.md
@@ -0,0 +1,40 @@
+% limb manual
+% genalloc_s(3)
+
+# NAME
+
+genalloc_s, genalloc_len, genalloc_setlen - accessing genalloc data
+
+# SYNOPSIS
+
+    #include <limb/genalloc.h>
+
+```pre hl
+<em>type</em> *genalloc_s(<em>type</em>, genalloc *<em>ga</em>)
+size_t genalloc_len(<em>type</em>, genalloc *<em>ga</em>)
+void genalloc_setlen(<em>type</em>, genalloc *<em>ga</em>, int <em>num</em>)
+```
+
+# DESCRIPTION
+
+The `genalloc_s`() macro returns a pointer to the data contained in genalloc
+`ga`, which must be elements of type `type`. This macro is intended as a way to
+access data stored inside a genalloc, allowing to read or write said data.
+A typical way to access a specific element might be :
+    mytype *el = &genalloc_s(mytype, ga)[idx];
+
+The `genalloc_len`() macro returns the number of elements contained in genalloc
+`ga`, assuming it contains elements of of type `type`.
+
+The `genalloc_setlen`() macro sets the used size of genalloc `ga` to be that of
+`num` elements of type `type`. Note that no checks are performed, it is up to
+the caller of ensure the size set is valid. Much like when setting member `len`
+of an *stralloc*.
+
+# RETURN VALUE
+
+The `genalloc_s`() macro returns a pointer to the data in genalloc `ga`,
+type-casted to `type`.
+
+The `genalloc_len`() macro returns the number of elements of type `type` in
+genalloc `ga`.
diff --git a/src/doc/genalloc.h/genalloc_setlen.3.md b/src/doc/genalloc.h/genalloc_setlen.3.md
new file mode 120000
index 0000000..98f1774
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_setlen.3.md
@@ -0,0 +1 @@
+genalloc_s.3.md
\ No newline at end of file
diff --git a/src/doc/genalloc.h/genalloc_shrink.3.md b/src/doc/genalloc.h/genalloc_shrink.3.md
new file mode 120000
index 0000000..ef88e13
--- /dev/null
+++ b/src/doc/genalloc.h/genalloc_shrink.3.md
@@ -0,0 +1 @@
+genalloc_ready_tuned.3.md
\ No newline at end of file
diff --git a/src/doc/include/skalibs.md b/src/doc/include/skalibs.md
new file mode 100644
index 0000000..10b2c05
--- /dev/null
+++ b/src/doc/include/skalibs.md
@@ -0,0 +1,5 @@
+! INFO: skalibs
+! This header is a complement to skalibs' own header, intended to be used as a
+! "replacement". However, instead of re-inventing the wheel, it depends/includes
+! skalibs' header, and some of the functions below are actually implemented in
+! skalibs, or macros to such functions.
diff --git a/src/liblimb/include/limb/genalloc.h b/src/liblimb/include/limb/genalloc.h
new file mode 100644
index 0000000..517a1fe
--- /dev/null
+++ b/src/liblimb/include/limb/genalloc.h
@@ -0,0 +1,11 @@
+/* This file is part of limb                           https://lila.oss/limb
+ * Copyright (C) 2023 Olivier Brunel                          jjk@jjacky.com */
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef LIMB_GENALLOC_H
+#define LIMB_GENALLOC_H
+
+#include <skalibs/genalloc.h>
+
+#define genalloc_remove(type, ga, offset, n)   stralloc_remove((ga), (offset) * sizeof(type), (n) * sizeof(type))
+
+#endif /* LIMB_GENALLOC_H */